diff --git a/packages/designer/src/builtins/simulator/auxilary/README.md b/packages/designer/auxilary/README.md
similarity index 100%
rename from packages/designer/src/builtins/simulator/auxilary/README.md
rename to packages/designer/auxilary/README.md
diff --git a/packages/designer/src/builtins/simulator/auxilary/auxiliary.less b/packages/designer/auxilary/auxiliary.less
similarity index 100%
rename from packages/designer/src/builtins/simulator/auxilary/auxiliary.less
rename to packages/designer/auxilary/auxiliary.less
diff --git a/packages/designer/src/builtins/simulator/auxilary/auxiliary.tsx b/packages/designer/auxilary/auxiliary.tsx
similarity index 100%
rename from packages/designer/src/builtins/simulator/auxilary/auxiliary.tsx
rename to packages/designer/auxilary/auxiliary.tsx
diff --git a/packages/designer/src/builtins/simulator/auxilary/embed-editor-toolbar.tsx b/packages/designer/auxilary/embed-editor-toolbar.tsx
similarity index 100%
rename from packages/designer/src/builtins/simulator/auxilary/embed-editor-toolbar.tsx
rename to packages/designer/auxilary/embed-editor-toolbar.tsx
diff --git a/packages/designer/auxilary/gliding.less b/packages/designer/auxilary/gliding.less
new file mode 100644
index 000000000..733ae746d
--- /dev/null
+++ b/packages/designer/auxilary/gliding.less
@@ -0,0 +1,39 @@
+.my-edging {
+  box-sizing: border-box;
+  pointer-events: none;
+  position: absolute;
+  top: 0;
+  left: 0;
+  border: 1px dashed var(--color-brand-light);
+  z-index: 1;
+  background: rgba(95, 240, 114, 0.04);
+  will-change: transform, width, height;
+  transition-property: transform, width, height;
+  transition-duration: 60ms;
+  transition-timing-function: linear;
+  overflow: visible;
+  >.title {
+    position: absolute;
+    color: var(--color-brand-light);
+    top: -20px;
+    left: 0;
+    font-weight: lighter;
+  }
+
+  &.x-shadow {
+    border-color: rgba(138, 93, 226, 0.8);
+    background: rgba(138, 93, 226, 0.04);
+
+    >.title {
+      color: rgba(138, 93, 226, 1.0);
+    }
+  }
+
+  &.x-flow {
+    border-color: rgba(255, 99, 8, 0.8);
+    background: rgba(255, 99, 8, 0.04);
+    >.title {
+      color: rgb(255, 99, 8);
+    }
+  }
+}
diff --git a/packages/designer/auxilary/gliding.tsx b/packages/designer/auxilary/gliding.tsx
new file mode 100644
index 000000000..a6b063ddc
--- /dev/null
+++ b/packages/designer/auxilary/gliding.tsx
@@ -0,0 +1,47 @@
+import { observer } from '@recore/core-obx';
+import { Component } from 'react';
+import './edging.less';
+
+@observer
+export class GlidingView extends Component {
+  shouldComponentUpdate() {
+    return false;
+  }
+
+  render() {
+    const node = edging.watching;
+    if (!node || !edging.enable || (current.selection && current.selection.has(node.id))) {
+      return null;
+    }
+
+    // TODO: think of multi ReactInstance
+    // TODO: findDOMNode cause a render bug
+    const rect = node.document.computeRect(node);
+    if (!rect) {
+      return null;
+    }
+
+    const { scale, scrollTarget } = node.document.viewport;
+
+    const sx = scrollTarget!.left;
+    const sy = scrollTarget!.top;
+
+    const style = {
+      width: rect.width * scale,
+      height: rect.height * scale,
+      transform: `translate(${(sx + rect.left) * scale}px, ${(sy + rect.top) * scale}px)`,
+    } as any;
+
+    let className = 'my-edging';
+
+    // TODO:
+    // 1. thinkof icon
+    // 2. thinkof top|bottom|inner space
+
+    return (
+      <div className={className} style={style}>
+        <a className="title">{(node as any).title || node.tagName}</a>
+      </div>
+    );
+  }
+}
diff --git a/packages/designer/src/builtins/simulator/auxilary/index.ts b/packages/designer/auxilary/index.ts
similarity index 100%
rename from packages/designer/src/builtins/simulator/auxilary/index.ts
rename to packages/designer/auxilary/index.ts
diff --git a/packages/designer/src/builtins/simulator/auxilary/insertion.less b/packages/designer/auxilary/insertion.less
similarity index 100%
rename from packages/designer/src/builtins/simulator/auxilary/insertion.less
rename to packages/designer/auxilary/insertion.less
diff --git a/packages/designer/src/builtins/simulator/auxilary/insertion.tsx b/packages/designer/auxilary/insertion.tsx
similarity index 100%
rename from packages/designer/src/builtins/simulator/auxilary/insertion.tsx
rename to packages/designer/auxilary/insertion.tsx
diff --git a/packages/designer/src/builtins/simulator/auxilary/offset-observer.ts b/packages/designer/auxilary/offset-observer.ts
similarity index 100%
rename from packages/designer/src/builtins/simulator/auxilary/offset-observer.ts
rename to packages/designer/auxilary/offset-observer.ts
diff --git a/packages/designer/src/builtins/simulator/auxilary/selecting.less b/packages/designer/auxilary/selecting.less
similarity index 100%
rename from packages/designer/src/builtins/simulator/auxilary/selecting.less
rename to packages/designer/auxilary/selecting.less
diff --git a/packages/designer/src/builtins/simulator/auxilary/selecting.tsx b/packages/designer/auxilary/selecting.tsx
similarity index 100%
rename from packages/designer/src/builtins/simulator/auxilary/selecting.tsx
rename to packages/designer/auxilary/selecting.tsx
diff --git a/packages/designer/package.json b/packages/designer/package.json
index a553eb221..fa25e054d 100644
--- a/packages/designer/package.json
+++ b/packages/designer/package.json
@@ -3,16 +3,13 @@
   "version": "0.9.0",
   "description": "alibaba lowcode designer",
   "main": "index.js",
-  "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
-  },
   "author": "",
   "license": "MIT",
   "dependencies": {
+    "@ali/iceluna-sdk": "^1.0.5-beta.12",
     "@recore/core-obx": "^1.0.4",
     "@recore/obx": "^1.0.5",
     "@types/medium-editor": "^5.0.3",
-    "@ali/lowcode-renderer": "0.9.0",
     "classnames": "^2.2.6",
     "react": "^16",
     "react-dom": "^16.7.0"
diff --git a/packages/designer/src/builtins/drag-ghost/index.tsx b/packages/designer/src/builtins/drag-ghost/index.tsx
new file mode 100644
index 000000000..a42793a55
--- /dev/null
+++ b/packages/designer/src/builtins/drag-ghost/index.tsx
@@ -0,0 +1,82 @@
+import { Component } from 'react';
+import { obx } from '@recore/obx';
+import { observer } from '@recore/core-obx';
+import Designer from '../../designer/designer';
+import './ghost.less';
+
+type offBinding = () => any;
+
+@observer
+export default class Ghost extends Component<{ designer: Designer }> {
+  private dispose: offBinding[] = [];
+  @obx.ref private dragment: any = null;
+  @obx.ref private x = 0;
+  @obx.ref private y = 0;
+  private dragon = this.props.designer.dragon;
+
+  componentWillMount() {
+    this.dispose = [
+       this.dragon.onDragstart((e) => {
+        this.dragment = e.dragObject;
+        this.x = e.globalX;
+        this.y = e.globalY;
+      }),
+      this.dragon.onDrag(e => {
+        this.x = e.globalX;
+        this.y = e.globalY;
+      }),
+      this.dragon.onDragend(() => {
+        this.dragment = null;
+        this.x = 0;
+        this.y = 0;
+      }),
+    ];
+  }
+
+  shouldComponentUpdate() {
+    return false;
+  }
+
+  componentWillUnmount() {
+    if (this.dispose) {
+      this.dispose.forEach(off => off());
+    }
+  }
+
+  renderGhostGroup() {
+    const dragment = this.dragment;
+    if (Array.isArray(dragment)) {
+      return dragment.map((node: any, index: number) => {
+        const ghost = (
+          <div className="my-ghost" key={`ghost-${index}`}>
+            <div className="my-ghost-title">{node.tagName}</div>
+          </div>
+        );
+        return ghost;
+      });
+    } else {
+      return (
+        <div className="my-ghost">
+          <div className="my-ghost-title">{dragment.tagName}</div>
+        </div>
+      );
+    }
+  }
+
+  render() {
+    if (!this.dragment) {
+      return null;
+    }
+
+    return (
+      <div
+        className="my-ghost-group"
+        style={{
+          transform: `translate(${this.x}px, ${this.y}px)`,
+        }}
+      >
+        {this.renderGhostGroup()}
+      </div>
+    );
+  }
+}
diff --git a/packages/designer/src/builtins/embed-editor.ts b/packages/designer/src/builtins/embed-editor.ts
deleted file mode 100644
index 89368a8e8..000000000
--- a/packages/designer/src/builtins/embed-editor.ts
+++ /dev/null
@@ -1,59 +0,0 @@
-import MediumEditor from 'medium-editor';
-import { computed, obx } from '@ali/recore';
-import { current } from './current';
-import ElementNode from '../document/node/element-node';
-
-class EmbedEditor {
-  @obx container?: HTMLDivElement | null;
-  private _editor?: any;
-  @computed getEditor(): any | null {
-    if (this._editor) {
-      this._editor.destroy();
-      this._editor = null;
-    }
-    const win = current.document!.contentWindow;
-    const doc = current.document!.ownerDocument;
-    if (!win || !doc || !this.container) {
-      return null;
-    }
-
-    const rect = this.container.getBoundingClientRect();
-
-    this._editor = new MediumEditor([], {
-      contentWindow: win,
-      ownerDocument: doc,
-      toolbar: {
-        diffLeft: rect.left,
-        diffTop: rect.top - 10,
-      },
-      elementsContainer: this.container,
-    });
-    return this._editor;
-  }
-
-  @obx.ref editing?: [ElementNode, string, HTMLElement];
-
-  edit(node: ElementNode, prop: string, el: HTMLElement) {
-    const ed = this.getEditor();
-    if (!ed) {
-      return;
-    }
-    this.exitAndSave();
-    console.info(el);
-    this.editing = [node, prop, el];
-    ed.origElements = el;
-    ed.setup();
-  }
-
-  exitAndSave() {
-    this.editing = undefined;
-    // removeElements
-    // get content save to
-  }
-
-  mount(container?: HTMLDivElement | null) {
-    this.container = container;
-  }
-}
-
-export default new EmbedEditor();
diff --git a/packages/designer/src/builtins/simulator/host/README.md b/packages/designer/src/builtins/simulator/host/README.md
new file mode 100644
index 000000000..a2da06fa3
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/host/README.md
@@ -0,0 +1 @@
+主进程
diff --git a/packages/designer/src/builtins/simulator/host/create-simulator.ts b/packages/designer/src/builtins/simulator/host/create-simulator.ts
new file mode 100644
index 000000000..5928a055a
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/host/create-simulator.ts
@@ -0,0 +1,77 @@
+// NOTE: 仅用作类型标注，切勿作为实体使用
+import { SimulatorRenderer } from '../renderer/renderer';
+import { SimulatorHost } from './host';
+import { AssetLevel, AssetList, isAssetBundle, isAssetItem, isCSSUrl, AssetType, assetItem } from '../utils/asset';
+
+export function createSimulator(host: SimulatorHost, iframe: HTMLIFrameElement, vendors: AssetList = []): Promise<SimulatorRenderer> {
+  const win: any = iframe.contentWindow;
+  const doc = iframe.contentDocument!;
+
+  win.LCSimulatorHost = host;
+
+  const styles: any = {};
+  const scripts: any = {};
+  Object.keys(AssetLevel).forEach((key) => {
+    const v = (AssetLevel as any)[key];
+    styles[v] = [];
+    scripts[v] = [];
+  });
+
+  function parseAssetList(assets: AssetList, level?: AssetLevel) {
+    for (let asset of assets) {
+      if (!asset) {
+        continue;
+      }
+      if (isAssetBundle(asset)) {
+        if (asset.assets) {
+          parseAssetList(Array.isArray(asset.assets) ? asset.assets : [asset.assets], asset.level || level);
+        }
+        continue;
+      }
+      if (Array.isArray(asset)) {
+        parseAssetList(asset, level);
+        continue;
+      }
+      if (!isAssetItem(asset)) {
+        asset = assetItem(isCSSUrl(asset) ? AssetType.CSSUrl : AssetType.JSUrl, asset, level)!;
+      }
+      const id = asset.id ? ` data-id="${asset.id}"` : '';
+      const lv = asset.level || level || AssetLevel.BaseDepends;
+      if (asset.type === 'jsUrl') {
+        (scripts[lv] || scripts[AssetLevel.App]).push(`<script src="${asset.content}"${id}></script>`)
+      } else if (asset.type === 'jsText') {
+        (scripts[lv] || scripts[AssetLevel.App]).push(`<script${id}>${asset.content}</script>`);
+      } else if (asset.type === 'cssUrl') {
+        (styles[lv] || styles[AssetLevel.App]).push(`<link rel="stylesheet" href="${asset.content}"${id} />`);
+      } else if (asset.type === 'cssText') {
+        (styles[lv] || styles[AssetLevel.App]).push(`<style type="text/css"${id}>${asset.content}</style>`);
+      }
+    }
+  }
+
+  parseAssetList(vendors);
+
+  const styleFrags = Object.keys(styles).map(key => {
+    return styles[key].join('\n') + `<meta level="${key}" />`;
+  });
+  const scriptFrags = Object.keys(scripts).map(key => {
+    return styles[key].join('\n') + `<meta level="${key}" />`;
+  });
+
+  doc.open();
+  doc.write(`<!doctype html><html><head><meta charset="utf-8"/>
+  ${styleFrags}
+</head><body>${scriptFrags}</body></html>`);
+  doc.close();
+
+  return new Promise(resolve => {
+    if (win.SimulatorRenderer || host.renderer) {
+      return resolve(win.SimulatorRenderer || host.renderer);
+    }
+    const loaded = () => {
+      resolve(win.SimulatorRenderer || host.renderer);
+      win.removeEventListener('load', loaded);
+    };
+    win.addEventListener('load', loaded);
+  });
+}
diff --git a/packages/designer/src/builtins/simulator/host/host-view.tsx b/packages/designer/src/builtins/simulator/host/host-view.tsx
new file mode 100644
index 000000000..dddf33338
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/host/host-view.tsx
@@ -0,0 +1,95 @@
+import { Component, createContext } from 'react';
+import { observer } from '@recore/core-obx';
+// import { AuxiliaryView } from '../auxilary';
+import { SimulatorHost, SimulatorProps } from './host';
+import DocumentModel from '../../../designer/document/document-model';
+import './host.less';
+
+/*
+  Simulator 模拟器，可替换部件，有协议约束, 包含画布的容器，使用场景：当 Canvas 大小变化时，用来居中处理 或 定位 Canvas
+  Canvas(DeviceShell) 设备壳层，通过背景图片来模拟，通过设备预设样式改变宽度、高度及定位 CanvasViewport
+  CanvasViewport 页面编排场景中宽高不可溢出 Canvas 区
+  Content(Shell) 内容外层，宽高紧贴 CanvasViewport，禁用边框，禁用 margin
+  ContentFrame 可设置宽高，在页面场景一般只设置框，高度拉伸贴合 Content
+  Auxiliary 辅助显示层，初始相对 Content 位置 0,0，紧贴 Canvas, 根据 Content 滚动位置，改变相对位置
+*/
+
+export const SimulatorContext = createContext<SimulatorHost>({} as any);
+
+export class SimulatorHostView extends Component<SimulatorProps & {
+  documentContext: DocumentModel;
+  onMount?: (host: SimulatorHost) => void;
+}> {
+  readonly host: SimulatorHost;
+  constructor(props: any) {
+    super(props);
+    const { documentContext } = this.props;
+    this.host = (documentContext.simulator as SimulatorHost) || new SimulatorHost(documentContext);
+  }
+  shouldComponentUpdate(nextProps: SimulatorProps) {
+    this.host.setProps(nextProps);
+    return false;
+  }
+  componentDidMount() {
+    if (this.props.onMount) {
+      this.props.onMount(this.host);
+    }
+  }
+  render() {
+    const { Provider } = SimulatorContext;
+    return (
+      <div className="lc-simulator">
+        <Provider value={this.host}>
+          {/*progressing.visible ? <PreLoaderView /> : null*/}
+          <Canvas />
+        </Provider>
+      </div>
+    );
+  }
+}
+
+@observer
+class Canvas extends Component {
+  static contextType = SimulatorContext;
+  render() {
+    const sim = this.context as SimulatorHost;
+    let className = 'lc-simulator-canvas';
+    if (sim.deviceClassName) {
+      className += ` ${sim.deviceClassName}`;
+    } else if (sim.device) {
+      className += ` lc-simulator-device-${sim.device}`;
+    }
+
+    return (
+      <div className={className}>
+        <div ref={elmt => sim.mountViewport(elmt)} className="lc-simulator-canvas-viewport">
+          {/*<AuxiliaryView />*/}
+          <Content />
+        </div>
+      </div>
+    );
+  }
+}
+
+@observer
+class Content extends Component {
+  static contextType = SimulatorContext;
+  render() {
+    const sim = this.context as SimulatorHost;
+    const viewport = sim.viewport;
+    let frameStyle = {};
+    if (viewport.scale < 1) {
+      frameStyle = {
+        transform: `scale(${viewport.scale})`,
+        height: viewport.contentHeight,
+        width: viewport.contentWidth,
+      };
+    }
+
+    return (
+      <div className="lc-simulator-content">
+        <iframe className="lc-simulator-content-frame" style={frameStyle} ref={frame => sim.mountContentFrame(frame)} />
+      </div>
+    );
+  }
+}
diff --git a/packages/designer/src/builtins/simulator/host/host.less b/packages/designer/src/builtins/simulator/host/host.less
new file mode 100644
index 000000000..e6e4f9626
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/host/host.less
@@ -0,0 +1,67 @@
+@scope: lc-simulator;
+
+.@{scope} {
+  position: relative;
+  height: 100%;
+  width: 100%;
+
+  &-canvas {
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    left: 0;
+    width: 100%;
+    overflow: hidden;
+
+    &-viewport {
+      position: absolute;
+      top: 0;
+      bottom: 0;
+      left: 0;
+      width: 100%;
+    }
+  }
+
+  &-device-mobile {
+    left: 50%;
+    width: 460px;
+    transform: translateX(-50%);
+    box-shadow: 0 2px 10px 0 rgba(31,56,88,.15);
+  }
+
+  &-device-iphone6 {
+    left: 50%;
+    width: 368px;
+    transform: translateX(-50%);
+    background: url(https://img.alicdn.com/tps/TB12GetLpXXXXXhXFXXXXXXXXXX-756-1544.png) no-repeat top;
+    background-size: 378px 772px;
+    top: 8px;
+    .@{scope}-canvas-viewport {
+      top: 114px;
+      left: 25px;
+      right: 25px;
+      max-height: 561px;
+      border-radius: 0 0 2px 2px;
+    }
+  }
+
+  &-device-legao {
+    margin: 15px;
+    box-shadow: 0 2px 10px 0 rgba(31,56,88,.15);
+  }
+
+  &-content {
+    position: absolute;
+    top: 0;
+    bottom: 0;
+    left: 0;
+    width: 100%;
+    overflow: hidden;
+    &-frame {
+      border: none;
+      transform-origin: 0 0;
+      height: 100%;
+      width: 100%;
+    }
+  }
+}
diff --git a/packages/designer/src/builtins/simulator/host/host.ts b/packages/designer/src/builtins/simulator/host/host.ts
new file mode 100644
index 000000000..ca8a5620f
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/host/host.ts
@@ -0,0 +1,799 @@
+import { obx, autorun, computed } from '@recore/obx';
+import { ISimulator, ComponentInstance, Component } from '../../../designer/simulator';
+import Viewport from './viewport';
+import { createSimulator } from './create-simulator';
+import { SimulatorRenderer } from '../renderer/renderer';
+import Node, { NodeParent } from '../../../designer/document/node/node';
+import DocumentModel from '../../../designer/document/document-model';
+import ResourceConsumer from './resource-consumer';
+import { AssetLevel, Asset, assetBundle } from '../utils/asset';
+import { DragObjectType, isShaken, LocateEvent, DragNodeObject, DragNodeDataObject } from '../../../designer/dragon';
+import { LocationData } from '../../../designer/location';
+import { NodeData } from '../../../designer/schema';
+import { ComponentDescriptionSpec } from '../../../designer/document/node/component-config';
+
+export interface SimulatorProps {
+  // 从 documentModel 上获取
+  // suspended?: boolean;
+  designMode?: 'live' | 'design' | 'extend' | 'border' | 'preview';
+  device?: 'mobile' | 'iphone' | string;
+  deviceClassName?: string;
+  simulatorUrl?: Asset;
+  dependsAsset?: Asset;
+  themesAsset?: Asset;
+  componentsAsset?: Asset;
+  [key: string]: any;
+}
+
+const publicPath = (document.currentScript as HTMLScriptElement).src.replace(/^(.*\/)[^/]+$/, '$1');
+
+const defaultSimulatorUrl = (() => {
+  let urls;
+  if (process.env.NODE_ENV === 'production') {
+    urls = [`${publicPath}simulator-renderer.min.css`, `${publicPath}simulator-renderer.min.js`];
+  } else {
+    urls = [`${publicPath}simulator-renderer.js`];
+  }
+  return urls;
+})();
+
+const defaultDepends = [
+  {
+    type: 'jsUrl',
+    content:
+      'https://g.alicdn.com/mylib/??react/16.11.0/umd/react.production.min.js,react-dom/16.8.6/umd/react-dom.production.min.js,prop-types/15.7.2/prop-types.min.js',
+    id: 'rect',
+  },
+  {
+    type: 'jsText',
+    content:
+      'React.PropTypes=window.PropTypes;window.__REACT_DEVTOOLS_GLOBAL_HOOK__ = window.parent.__REACT_DEVTOOLS_GLOBAL_HOOK__;',
+  },
+];
+
+export class SimulatorHost implements ISimulator<SimulatorProps> {
+  constructor(readonly document: DocumentModel) {}
+
+  readonly designer = this.document.designer;
+
+  private _sensorAvailable: boolean = true;
+  get sensorAvailable(): boolean {
+    return this._sensorAvailable;
+  }
+
+  @computed get device(): string | undefined {
+    // 根据 device 不同来做画布外框样式变化  渲染时可选择不同组件
+    // renderer 依赖
+    return this.get('device');
+  }
+
+  @computed get deviceClassName(): string | undefined {
+    return this.get('deviceClassName');
+  }
+
+  @computed get designMode(): 'live' | 'design' | 'extend' | 'border' | 'preview' {
+    // renderer 依赖
+    // TODO: 需要根据 design mode 不同切换鼠标响应情况
+    return this.get('designMode') || 'design';
+  }
+
+  @computed get componentsAsset(): Asset | undefined {
+    return this.get('componentsAsset');
+  }
+
+  @computed get themesAsset(): Asset | undefined {
+    return this.get('themesAsset');
+  }
+
+  @computed get componentsMap() {
+    // renderer 依赖
+    return this.designer.componentsMap;
+  }
+
+  @obx.ref _props: SimulatorProps = {};
+  setProps(props: SimulatorProps) {
+    this._props = props;
+  }
+  set(key: string, value: any) {
+    this._props = {
+      ...this._props,
+      [key]: value,
+    };
+  }
+  get(key: string): any {
+    return this._props[key];
+  }
+
+  /**
+   * 有 Renderer 进程连接进来，设置同步机制
+   */
+  connect(renderer: SimulatorRenderer, fn: (context: { dispose: () => void; firstRun: boolean }) => void) {
+    this._renderer = renderer;
+    return autorun(fn as any, true);
+  }
+
+  purge(): void {}
+
+  readonly viewport = new Viewport();
+  readonly scroller = this.designer.createScroller(this.viewport);
+
+  mountViewport(viewport: Element | null) {
+    if (!viewport) {
+      return;
+    }
+    this.viewport.mount(viewport);
+  }
+
+  @obx.ref private _contentWindow?: Window;
+  get contentWindow() {
+    return this._contentWindow;
+  }
+  @obx.ref private _contentDocument?: Document;
+  get contentDocument() {
+    return this._contentDocument;
+  }
+
+  private _renderer?: SimulatorRenderer;
+  get renderer() {
+    return this._renderer;
+  }
+
+  readonly componentsConsumer = new ResourceConsumer<{
+    componentsAsset?: Asset;
+    componentsMap: object;
+  }>(() => {
+    return {
+      componentsAsset: this.componentsAsset,
+      componentsMap: this.componentsMap,
+    };
+  });
+
+  readonly injectionConsumer = new ResourceConsumer(() => {
+    return {};
+  });
+
+  async mountContentFrame(iframe: HTMLIFrameElement | null) {
+    if (!iframe) {
+      return;
+    }
+
+    this._contentWindow = iframe.contentWindow!;
+
+    const vendors = [
+      // required & use once
+      assetBundle(this.get('dependsAsset') || defaultDepends, AssetLevel.BaseDepends),
+      // required & TODO: think of update
+      assetBundle(this.themesAsset, AssetLevel.Theme),
+      // required & use once
+      assetBundle(this.get('simulatorUrl') || defaultSimulatorUrl, AssetLevel.Runtime),
+    ];
+
+    // wait 准备 iframe 内容、依赖库注入
+    const renderer = await createSimulator(this, iframe, vendors);
+
+    // wait 业务组件被第一次消费，否则会渲染出错
+    await this.componentsConsumer.waitFirstConsume();
+
+    // wait 运行时上下文
+    await this.injectionConsumer.waitFirstConsume();
+
+    // step 5 ready & render
+    renderer.run();
+
+    // init events, overlays
+    this._contentDocument = this._contentWindow.document;
+    this.viewport.setScrollTarget(this._contentWindow);
+    this.setupEvents();
+    // hotkey.mount(this.contentWindow);
+    // clipboard.injectCopyPaster(this.ownerDocument);
+  }
+
+  setupEvents() {
+    this.setupDragAndClick();
+    this.setupHovering();
+  }
+
+  setupDragAndClick() {
+    const documentModel = this.document;
+    const selection = documentModel.selection;
+    const designer = documentModel.designer;
+    const doc = this.contentDocument!;
+
+    // TODO: think of lock when edit a node
+    // 事件路由
+    doc.addEventListener('mousedown', (downEvent: MouseEvent) => {
+      const target = documentModel.getNodeFromElement(downEvent.target as Element);
+      if (!target) {
+        selection.clear();
+        return;
+      }
+
+      const isMulti = downEvent.metaKey || downEvent.ctrlKey;
+      const isLeftButton = downEvent.which === 1 || downEvent.button === 0;
+
+      if (isLeftButton) {
+        let node: Node = target;
+        let nodes: Node[] = [node];
+        let ignoreUpSelected = false;
+        if (isMulti) {
+          // multi select mode, directily add
+          if (!selection.has(node.id)) {
+            // activeTracker.track(node);
+            selection.add(node.id);
+            ignoreUpSelected = true;
+          }
+          // 获得顶层 nodes
+          nodes = selection.getTopNodes();
+        } else if (selection.containsNode(target)) {
+          nodes = selection.getTopNodes();
+        } else {
+          // will clear current selection & select dragment in dragstart
+        }
+        designer.dragon.boost(
+          {
+            type: DragObjectType.Node,
+            nodes,
+          },
+          downEvent,
+        );
+        if (ignoreUpSelected) {
+          // multi select mode has add selected, should return
+          return;
+        }
+      }
+
+      const checkSelect = (e: MouseEvent) => {
+        doc.removeEventListener('mouseup', checkSelect, true);
+        if (!isShaken(downEvent, e)) {
+          // const node = hasConditionFlow(target) ? target.conditionFlow : target;
+          const node = target;
+          const id = node.id;
+          designer.activeTracker.track(node);
+          if (isMulti && selection.has(id)) {
+            selection.remove(id);
+          } else {
+            selection.select(id);
+          }
+        }
+      };
+      doc.addEventListener('mouseup', checkSelect, true);
+    });
+
+    // cause edit
+    doc.addEventListener('dblclick', (e: MouseEvent) => {
+      // TODO:
+    });
+  }
+
+  private disableHovering?: () => void;
+  /**
+   * 设置悬停处理
+   */
+  setupHovering() {
+    const doc = this.contentDocument!;
+    const hovering = this.document.designer.hovering;
+    const hover = (e: MouseEvent) => {
+      if (!hovering.enable) {
+        return;
+      }
+      const node = this.document.getNodeFromElement(e.target as Element);
+      hovering.hover(node, e);
+      e.stopPropagation();
+    };
+    const leave = () => hovering.leave(this.document);
+
+    doc.addEventListener('mouseover', hover, true);
+    doc.addEventListener('mouseleave', leave, false);
+
+    // TODO: refactor this line, contains click, mousedown, mousemove
+    doc.addEventListener(
+      'mousemove',
+      (e: Event) => {
+        e.stopPropagation();
+      },
+      true,
+    );
+
+    this.disableHovering = () => {
+      hovering.leave(this.document);
+      doc.removeEventListener('mouseover', hover, true);
+      doc.removeEventListener('mouseleave', leave, false);
+      this.disableHovering = undefined;
+    };
+  }
+
+  setDraggingState(state: boolean): void {
+    throw new Error('Method not implemented.');
+  }
+  isDraggingState(): boolean {
+    throw new Error('Method not implemented.');
+  }
+  setCopyState(state: boolean): void {
+    throw new Error('Method not implemented.');
+  }
+  setSuspense(suspended: boolean) {
+    if (suspended) {
+      if (this.disableHovering) {
+        this.disableHovering();
+      }
+      // sleep some autorun reaction
+    } else {
+      // weekup some autorun reaction
+      if (!this.disableHovering) {
+        this.setupHovering();
+      }
+    }
+  }
+  setDesignMode(mode: string): void {
+    throw new Error('Method not implemented.');
+  }
+  isCopyState(): boolean {
+    throw new Error('Method not implemented.');
+  }
+  clearState(): void {
+    throw new Error('Method not implemented.');
+  }
+
+  describeComponent(component: Component): ComponentDescriptionSpec {
+    throw new Error('Method not implemented.');
+  }
+
+  getComponent(componentName: string): Component {
+    throw new Error('Method not implemented.');
+  }
+
+  getComponentInstance(node: Node): ComponentInstance[] | null {
+    throw new Error('Method not implemented.');
+  }
+
+  getComponentContext(node: Node): object {
+    throw new Error('Method not implemented.');
+  }
+
+  getClosestNodeId(elem: Element): string {
+    throw new Error('Method not implemented.');
+  }
+
+  findDOMNodes(instance: ComponentInstance): (Element | Text)[] | null {
+    throw new Error('Method not implemented.');
+  }
+
+  private tryScrollAgain: number | null = null;
+  scrollToNode(node: Node, detail?: any, tryTimes = 0) {
+    this.tryScrollAgain = null;
+    if (this.sensing) {
+      // actived sensor
+      return;
+    }
+
+    const opt: any = {};
+    let scroll = false;
+
+    if (detail) {
+      // TODO:
+      /*
+      const rect = insertion ? insertion.getNearRect() : node.getRect();
+      let y;
+      let scroll = false;
+      if (insertion && rect) {
+        y = insertion.isNearAfter() ? rect.bottom : rect.top;
+
+        if (y < bounds.top || y > bounds.bottom) {
+          scroll = true;
+        }
+      }*/
+    } else {
+      /*
+      const rect = this.document.computeRect(node);
+      if (!rect || rect.width === 0 || rect.height === 0) {
+        if (!this.tryScrollAgain && tryTimes < 3) {
+          this.tryScrollAgain = requestAnimationFrame(() => this.scrollToNode(node, null, tryTimes + 1));
+        }
+        return;
+      }
+      const scrollTarget = this.viewport.scrollTarget!;
+      const st = scrollTarget.top;
+      const sl = scrollTarget.left;
+      const { scrollHeight, scrollWidth } = scrollTarget;
+      const { height, width, top, bottom, left, right } = this.viewport.contentBounds;
+
+      if (rect.height > height ? rect.top > bottom || rect.bottom < top : rect.top < top || rect.bottom > bottom) {
+        opt.top = Math.min(rect.top + rect.height / 2 + st - top - height / 2, scrollHeight - height);
+        scroll = true;
+      }
+
+      if (rect.width > width ? rect.left > right || rect.right < left : rect.left < left || rect.right > right) {
+        opt.left = Math.min(rect.left + rect.width / 2 + sl - left - width / 2, scrollWidth - width);
+        scroll = true;
+      }*/
+    }
+
+    if (scroll && this.scroller) {
+      this.scroller.scrollTo(opt);
+    }
+  }
+
+  fixEvent(e: LocateEvent): LocateEvent {
+    /*
+    if (e.fixed) {
+      return e;
+    }
+    if (!e.target || e.originalEvent.view!.document !== this.contentDocument) {
+      e.target = this.contentDocument!.elementFromPoint(e.canvasX, e.canvasY);
+    }*/
+    return e;
+  }
+
+  isEnter(e: LocateEvent): boolean {
+    return false; /*
+    const rect = this.bounds;
+    return e.globalY >= rect.top && e.globalY <= rect.bottom && e.globalX >= rect.left && e.globalX <= rect.right;
+    */
+  }
+
+  private sensing: boolean = false;
+  deactiveSensor() {
+    this.sensing = false;
+    this.scroller.cancel();
+  }
+
+  //#region drag locate logic
+  getDropTarget(e: LocateEvent): NodeParent | LocationData | null {
+    /*
+    const { target, dragTarget } = e;
+    const isAny = isAnyDragTarget(dragTarget);
+    let container: any;
+    if (target) {
+      const ref = this.document.getNodeFromElement(target as Element);
+      if (ref) {
+        container = ref;
+      } else if (isAny) {
+        return null;
+      } else {
+        container = this.document.view;
+      }
+    } else if (isAny) {
+      return null;
+    } else {
+      container = this.document.view;
+    }
+
+    if (!isElementNode(container) && !isRootNode(container)) {
+      container = container.parent;
+    }
+
+    // use spec container to accept specialData
+    if (isAny) {
+      while (container) {
+        if (isRootNode(container)) {
+          return null;
+        }
+        const locationData = this.acceptAnyData(container, e);
+        if (locationData) {
+          return locationData;
+        }
+        container = container.parent;
+      }
+      return null;
+    }
+
+    let res: any;
+    let upward: any;
+    // TODO: improve AT_CHILD logic, mark has checked
+    while (container) {
+      res = this.acceptNodes(container, e);
+      if (isLocationData(res)) {
+        return res;
+      }
+      if (res === true) {
+        return container;
+      }
+      if (!res) {
+        if (upward) {
+          container = upward;
+          upward = null;
+        } else {
+          container = container.parent;
+        }
+      } else if (res === AT_CHILD) {
+        if (!upward) {
+          upward = container.parent;
+        }
+        container = this.getNearByContainer(container, e);
+        if (!container) {
+          container = upward;
+          upward = null;
+        }
+      } else if (isNode(res)) {
+        container = res;
+        upward = null;
+      }
+    }*/
+    return null;
+  }
+
+  acceptNodes(container: Node, e: LocateEvent) {
+    /*
+    const { dragTarget } = e;
+    if (isRootNode(container)) {
+      return this.checkDropTarget(container, dragTarget as any);
+    }
+
+    const proto = container.prototype;
+
+    const acceptable: boolean = this.isAcceptable(container);
+    if (!proto.isContainer && !acceptable) {
+      return false;
+    }
+
+    // check is contains, get common parent
+    if (isNodesDragTarget(dragTarget)) {
+      const nodes = dragTarget.nodes;
+      let i = nodes.length;
+      let p: any = container;
+      while (i-- > 0) {
+        if (contains(nodes[i], p)) {
+          p = nodes[i].parent;
+        }
+      }
+      if (p !== container) {
+        return p || this.document.view;
+      }
+    }
+
+    // first use accept
+    if (acceptable) {
+      const view: any = this.document.getView(container);
+      if (view && '$accept' in view) {
+        if (view.$accept === false) {
+          return false;
+        }
+        if (view.$accept === AT_CHILD || view.$accept === '@CHILD') {
+          return AT_CHILD;
+        }
+        if (typeof view.$accept === 'function') {
+          const ret = view.$accept(container, e);
+          if (ret || ret === false) {
+            return ret;
+          }
+        }
+      }
+      if (proto.acceptable) {
+        const ret = proto.accept(container, e);
+        if (ret || ret === false) {
+          return ret;
+        }
+      }
+    }
+
+    return this.checkNesting(container, dragTarget as any);
+    */
+  }
+
+  getNearByContainer(container: NodeParent, e: LocateEvent) {
+    /*
+    const children = container.children;
+    if (!children || children.length < 1) {
+      return null;
+    }
+
+    let nearDistance: any = null;
+    let nearBy: any = null;
+    for (let i = 0, l = children.length; i < l; i++) {
+      let child: any = children[i];
+      if (!isElementNode(child)) {
+        continue;
+      }
+      if (hasConditionFlow(child)) {
+        const bn = child.conditionFlow;
+        i = bn.index + bn.length - 1;
+        child = bn.visibleNode;
+      }
+      const rect = this.document.computeRect(child);
+      if (!rect) {
+        continue;
+      }
+
+      if (isPointInRect(e, rect)) {
+        return child;
+      }
+
+      const distance = distanceToRect(e, rect);
+      if (nearDistance === null || distance < nearDistance) {
+        nearDistance = distance;
+        nearBy = child;
+      }
+    }
+
+    return nearBy;*/
+  }
+
+  locate(e: LocateEvent): any {
+    /*
+    this.sensing = true;
+    this.scroller.scrolling(e);
+    const dropTarget = this.getDropTarget(e);
+    if (!dropTarget) {
+      return null;
+    }
+
+    if (isLocationData(dropTarget)) {
+      return this.document.createLocation(dropTarget);
+    }
+
+    const target = dropTarget;
+
+    const edge = this.document.computeRect(target);
+
+    const children = target.children;
+
+    const detail: LocationChildrenDetail = {
+      type: LocationDetailType.Children,
+      index: 0,
+    };
+
+    const locationData = {
+      target,
+      detail,
+    };
+
+    if (!children || children.length < 1 || !edge) {
+      return this.document.createLocation(locationData);
+    }
+
+    let nearRect = null;
+    let nearIndex = 0;
+    let nearNode = null;
+    let nearDistance = null;
+    let top = null;
+    let bottom = null;
+
+    for (let i = 0, l = children.length; i < l; i++) {
+      let node = children[i];
+      let index = i;
+      if (hasConditionFlow(node)) {
+        node = node.conditionFlow;
+        index = node.index;
+        // skip flow items
+        i = index + (node as any).length - 1;
+      }
+      const rect = this.document.computeRect(node);
+
+      if (!rect) {
+        continue;
+      }
+
+      const distance = isPointInRect(e, rect) ? 0 : distanceToRect(e, rect);
+
+      if (distance === 0) {
+        nearDistance = distance;
+        nearNode = node;
+        nearIndex = index;
+        nearRect = rect;
+        break;
+      }
+
+      // TODO: 忘记为什么这么处理了，记得添加注释
+      if (top === null || rect.top < top) {
+        top = rect.top;
+      }
+      if (bottom === null || rect.bottom > bottom) {
+        bottom = rect.bottom;
+      }
+
+      if (nearDistance === null || distance < nearDistance) {
+        nearDistance = distance;
+        nearNode = node;
+        nearIndex = index;
+        nearRect = rect;
+      }
+    }
+
+    detail.index = nearIndex;
+
+    if (nearNode && nearRect) {
+      const el = getRectTarget(nearRect);
+      const inline = el ? isChildInline(el) : false;
+      const row = el ? isRowContainer(el.parentElement!) : false;
+      const vertical = inline || row;
+      // TODO: fix type
+      const near: any = {
+        node: nearNode,
+        pos: 'before',
+        align: vertical ? 'V' : 'H',
+      };
+      detail.near = near;
+      if (isNearAfter(e, nearRect, vertical)) {
+        near.pos = 'after';
+        detail.index = nearIndex + (isConditionFlow(nearNode) ? nearNode.length : 1);
+      }
+      if (!row && nearDistance !== 0) {
+        const edgeDistance = distanceToEdge(e, edge);
+        if (edgeDistance.distance < nearDistance!) {
+          const nearAfter = edgeDistance.nearAfter;
+          if (top == null) {
+            top = edge.top;
+          }
+          if (bottom == null) {
+            bottom = edge.bottom;
+          }
+          near.rect = new DOMRect(edge.left, top, edge.width, bottom - top);
+          near.align = 'H';
+          near.pos = nearAfter ? 'after' : 'before';
+          detail.index = nearAfter ? children.length : 0;
+        }
+      }
+    }
+
+    return this.document.createLocation(locationData);
+    */
+  }
+
+  isAcceptable(container: NodeParent): boolean {
+    return false;
+    /*
+    const proto = container.prototype;
+    const view: any = this.getComponentInstance(container);
+    if (view && '$accept' in view) {
+      return true;
+    }
+    return proto.acceptable;*/
+  }
+
+  acceptAnyData(container: Node, e: LocateEvent | MouseEvent | KeyboardEvent) {
+    /*
+    const proto = container.prototype;
+    const view: any = this.document.getView(container);
+    // use view instance method: $accept
+    if (view && typeof view.$accept === 'function') {
+      // should return LocationData
+      return view.$accept(container, e);
+    }
+    // use prototype method: accept
+    return proto.accept(container, e);*/
+  }
+
+  checkNesting(dropTarget: Node, dragTarget: DragNodeObject | DragNodeDataObject): boolean {
+    return false;
+    /*
+    const items: Array<INode | NodeData> = dragTarget.nodes || (dragTarget as NodeDatasDragTarget).data;
+    return items.every(item => this.checkNestingDown(dropTarget, item));
+    */
+  }
+
+  checkDropTarget(dropTarget: Node, dragTarget: DragNodeObject | DragNodeDataObject): boolean {
+    return false;
+    /*
+    const items: Array<INode | NodeData> = dragTarget.nodes || (dragTarget as NodeDatasDragTarget).data;
+    return items.every(item => this.checkNestingUp(dropTarget, item));
+    */
+  }
+
+  checkNestingUp(parent: NodeParent, target: NodeData | Node): boolean {
+    /*
+    if (isElementNode(target) || isElementData(target)) {
+      const proto = isElementNode(target)
+        ? target.prototype
+        : this.document.getPrototypeByTagNameOrURI(target.tagName, target.uri);
+      if (proto) {
+        return proto.checkNestingUp(target, parent);
+      }
+    }*/
+
+    return true;
+  }
+
+  checkNestingDown(parent: NodeParent, target: NodeData | Node): boolean {
+    /*
+    const proto = parent.prototype;
+    if (isConditionFlow(parent)) {
+      return parent.children.every(
+        child => proto.checkNestingDown(parent, child) && this.checkNestingUp(parent, child),
+      );
+    } else {
+      return proto.checkNestingDown(parent, target) && this.checkNestingUp(parent, target);
+    }*/
+    return false;
+  }
+  //#endregion
+}
diff --git a/packages/designer/src/builtins/simulator/host/index.ts b/packages/designer/src/builtins/simulator/host/index.ts
new file mode 100644
index 000000000..81e73b1e1
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/host/index.ts
@@ -0,0 +1,2 @@
+export * from './host';
+export * from './host-view';
diff --git a/packages/designer/src/builtins/simulator/host/resource-consumer.ts b/packages/designer/src/builtins/simulator/host/resource-consumer.ts
new file mode 100644
index 000000000..f53fa088c
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/host/resource-consumer.ts
@@ -0,0 +1,80 @@
+import { SimulatorRenderer } from '../renderer/renderer';
+import { autorun, obx } from '@recore/obx';
+import { SimulatorHost } from './host';
+import { EventEmitter } from 'events';
+
+const UNSET = Symbol('unset');
+export type MasterProvider = (master: SimulatorHost) => any;
+export type RendererConsumer<T> = (renderer: SimulatorRenderer, data: T) => Promise<any>;
+
+// master 进程
+//  0. 初始化该对象，因为需要响应变更发生在 master 进程
+//  1. 提供消费数据或数据提供器，比如 Asset 资源，如果不是数据提供器，会持续提供
+//  2. 收到成功通知
+// renderer 进程
+//  1. 持续消费，并持续监听数据
+//  2. 消费
+
+// 这里涉及俩个自定义项
+//  1. 被消费数据协议
+//  2. 消费机制（渲染进程自定 + 传递进入）
+
+function isSimulatorRenderer(obj: any): obj is SimulatorRenderer {
+  return obj && obj.isSimulatorRenderer;
+}
+
+export default class ResourceConsumer<T = any> {
+  private emitter = new EventEmitter();
+  @obx.ref private _data: T | typeof UNSET = UNSET;
+
+  private _providing?: () => void;
+  constructor(provider: () => T, private consumer?: RendererConsumer<T>) {
+    this._providing = autorun(() => {
+      this._data = provider();
+    });
+  }
+
+
+  private _consuming?: () => void;
+  consume(consumerOrRenderer: SimulatorRenderer | ((data: T) => any)) {
+    if (this._consuming) {
+      return;
+    }
+    let consumer: (data: T) => any;
+    if (isSimulatorRenderer(consumerOrRenderer)) {
+      if (!this.consumer) {
+        // TODO: throw error
+        return;
+      }
+      const rendererConsumer = this.consumer!;
+
+      consumer = (data) => rendererConsumer(consumerOrRenderer, data);
+    } else {
+      consumer = consumerOrRenderer;
+    }
+    this._consuming = autorun(async () => {
+      if (this._data === UNSET) {
+        return;
+      }
+      await consumer(this._data);
+      // TODO: catch error and report
+      this.emitter.emit('consume');
+    });
+  }
+
+  dispose() {
+    if (this._providing) {
+      this._providing();
+    }
+    if (this._consuming) {
+      this._consuming();
+    }
+    this.emitter.removeAllListeners();
+  }
+
+  waitFirstConsume(): Promise<any> {
+    return new Promise((resolve) => {
+      this.emitter.once('consume', resolve);
+    });
+  }
+}
diff --git a/packages/designer/src/builtins/simulator/host/viewport.ts b/packages/designer/src/builtins/simulator/host/viewport.ts
new file mode 100644
index 000000000..0c1af7ea6
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/host/viewport.ts
@@ -0,0 +1,135 @@
+import { obx, computed } from '@recore/obx';
+import { Point } from '../../../designer/location';
+import { ScrollTarget } from '../../../designer/scroller';
+import { AutoFit, IViewport } from '../../../designer/simulator';
+
+export default class Viewport implements IViewport {
+  @obx.ref private rect?: DOMRect;
+  private _bounds?: DOMRect;
+  get bounds(): DOMRect {
+    if (this._bounds) {
+      return this._bounds;
+    }
+    this._bounds = this.viewportElement!.getBoundingClientRect();
+    requestAnimationFrame(() => {
+      this._bounds = undefined;
+    });
+    return this._bounds;
+  }
+
+  get contentBounds(): DOMRect {
+    const bounds = this.bounds;
+    const scale = this.scale;
+    return new DOMRect(0, 0, bounds.width / scale, bounds.height / scale);
+  }
+
+  private viewportElement?: Element;
+  mount(viewportElement: Element | null) {
+    if (!viewportElement) {
+      return;
+    }
+    this.viewportElement = viewportElement;
+    this.touch();
+  }
+
+  touch() {
+    if (this.viewportElement) {
+      this.rect = this.bounds;
+    }
+  }
+
+  @computed get height(): number {
+    if (!this.rect) {
+      return 600;
+    }
+    return this.rect.height;
+  }
+  @computed get width(): number {
+    if (!this.rect) {
+      return 1000;
+    }
+    return this.rect.width;
+  }
+
+  /**
+   * 缩放比例
+   */
+  get scale(): number {
+    if (!this.rect || this.contentWidth === AutoFit) {
+      return 1;
+    }
+    return this.width / this.contentWidth;
+  }
+
+  @obx.ref private _contentWidth: number | AutoFit = AutoFit;
+
+  get contentHeight(): number | AutoFit {
+    if (!this.rect || this.scale === 1) {
+      return AutoFit;
+    }
+    return this.height / this.scale;
+  }
+
+  get contentWidth(): number | AutoFit {
+    if (!this.rect || (this._contentWidth !== AutoFit && this._contentWidth <= this.width)) {
+      return AutoFit;
+    }
+    return this._contentWidth;
+  }
+
+  set contentWidth(val: number | AutoFit) {
+    this._contentWidth = val;
+  }
+
+  @obx.ref private _scrollX = 0;
+  @obx.ref private _scrollY = 0;
+  get scrollX() {
+    return this._scrollX;
+  }
+  get scrollY() {
+    return this._scrollY;
+  }
+
+  private _scrollTarget?: ScrollTarget;
+  /**
+   * 滚动对象
+   */
+  get scrollTarget(): ScrollTarget | undefined {
+    return this._scrollTarget;
+  }
+
+  setScrollTarget(target: Window) {
+    const scrollTarget = new ScrollTarget(target);
+    this._scrollX = scrollTarget.left;
+    this._scrollY = scrollTarget.top;
+    target.onscroll = () => {
+      this._scrollX = scrollTarget.left;
+      this._scrollY = scrollTarget.top;
+    };
+    this._scrollTarget = scrollTarget;
+  }
+
+  toGlobalPoint(point: Point): Point {
+    if (!this.viewportElement) {
+      return point;
+    }
+
+    const rect = this.bounds;
+    return {
+      clientX: point.clientX * this.scale + rect.left,
+      clientY: point.clientY * this.scale + rect.top,
+    };
+  }
+
+  toLocalPoint(point: Point): Point {
+    if (!this.viewportElement) {
+      return point;
+    }
+
+    const rect = this.bounds;
+    return {
+      clientX: (point.clientX - rect.left) / this.scale,
+      clientY: (point.clientY - rect.top) / this.scale,
+    };
+  }
+}
diff --git a/packages/designer/src/builtins/simulator/index.ts b/packages/designer/src/builtins/simulator/index.ts
new file mode 100644
index 000000000..ea46f0d31
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/index.ts
@@ -0,0 +1,5 @@
+import { SimulatorHostView } from './host/host-view';
+
+export * from './host/host';
+export * from './host/host-view';
+export default SimulatorHostView;
diff --git a/packages/designer/src/builtins/simulator/renderer/README.md b/packages/designer/src/builtins/simulator/renderer/README.md
new file mode 100644
index 000000000..d218758d5
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/renderer/README.md
@@ -0,0 +1 @@
+沙箱环境
diff --git a/packages/designer/src/builtins/simulator/renderer/host.ts b/packages/designer/src/builtins/simulator/renderer/host.ts
new file mode 100644
index 000000000..43dd7be1d
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/renderer/host.ts
@@ -0,0 +1,4 @@
+// NOTE: 仅做类型标注，切勿做其它用途
+import { SimulatorHost } from '../host';
+
+export const host: SimulatorHost = (window as any).LCSimulatorHost;
diff --git a/packages/designer/src/builtins/simulator/renderer/index.ts b/packages/designer/src/builtins/simulator/renderer/index.ts
new file mode 100644
index 000000000..3a8872665
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/renderer/index.ts
@@ -0,0 +1,7 @@
+import renderer from './renderer';
+
+if (typeof window !== 'undefined') {
+  (window as any).SimulatorRenderer = renderer;
+}
+
+export default renderer;
diff --git a/packages/designer/src/builtins/simulator/renderer/renderer-view.tsx b/packages/designer/src/builtins/simulator/renderer/renderer-view.tsx
new file mode 100644
index 000000000..86974f3c9
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/renderer/renderer-view.tsx
@@ -0,0 +1,69 @@
+// import { Engine as LowCodeRenderer } from '@ali/iceluna-sdk';
+import { ReactInstance, Fragment, Component } from 'react';
+import { observer } from '@recore/core-obx';
+import { SimulatorRenderer } from './renderer';
+import './renderer.less';
+
+export default class SimulatorRendererView extends Component<{ renderer: SimulatorRenderer }> {
+  render() {
+    const { renderer } = this.props;
+    return (
+      <Layout renderer={renderer}>
+        <Renderer renderer={renderer} />
+      </Layout>
+    );
+  }
+}
+
+@observer
+class Layout extends Component<{ renderer: SimulatorRenderer; }> {
+  shouldComponentUpdate() {
+    return false;
+  }
+  render() {
+    const { renderer, children } = this.props;
+    const layout = renderer.layout;
+
+    if (layout) {
+      const { Component, props } = layout;
+      return <Component props={props}>{children}</Component>;
+    }
+
+    return <Fragment>{children}</Fragment>;
+  }
+}
+
+@observer
+class Renderer extends Component<{ renderer: SimulatorRenderer }> {
+  shouldComponentUpdate() {
+    return false;
+  }
+  render() {
+    const { renderer } = this.props;
+    return (
+      <LowCodeRenderer
+        schema={renderer.schema}
+        components={renderer.components}
+        appHelper={renderer.context}
+        // context={renderer.context}
+        designMode={renderer.designMode}
+        componentsMap={renderer.componentsMap}
+        suspended={renderer.suspended}
+        self={renderer.scope}
+        onComponentGetRef={(schema: any, ref: ReactInstance | null) => {
+          renderer.mountInstance(schema.id, ref);
+        }}
+        onComponentGetCtx={(schema: any, ctx: object) => {
+          renderer.mountContext(schema.id, ctx);
+        }}
+      />
+    );
+  }
+}
+
+
+class LowCodeRenderer extends Component<any> {
+  render() {
+    return <div>{JSON.stringify(this.props.schema)}</div>
+  }
+}
diff --git a/packages/designer/src/builtins/simulator/renderer/renderer.less b/packages/designer/src/builtins/simulator/renderer/renderer.less
new file mode 100644
index 000000000..337b719c7
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/renderer/renderer.less
@@ -0,0 +1,10 @@
+html {
+  padding-bottom: 30px;
+  background: transparent !important;
+}
+
+body, html {
+  display: block;
+  min-height: 100%;
+  background: white;
+}
diff --git a/packages/designer/src/builtins/simulator/renderer/renderer.ts b/packages/designer/src/builtins/simulator/renderer/renderer.ts
new file mode 100644
index 000000000..541be81da
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/renderer/renderer.ts
@@ -0,0 +1,259 @@
+import { createElement, ReactInstance } from 'react';
+import { render as reactRender } from 'react-dom';
+import { host } from './host';
+import SimulatorRendererView from './renderer-view';
+import { computed, obx } from '@recore/obx';
+import { RootSchema, NpmInfo } from '../../../designer/schema';
+import { isElement } from '../../../utils/dom';
+import { Asset } from '../utils/asset';
+import loader from '../utils/loader';
+import { ComponentDescriptionSpec } from '../../../designer/document/node/component-config';
+
+let REACT_KEY = '';
+function cacheReactKey(el: Element): Element {
+  if (REACT_KEY !== '') {
+    return el;
+  }
+  REACT_KEY = Object.keys(el).find(key => key.startsWith('__reactInternalInstance$')) || '';
+  if (!REACT_KEY && (el as HTMLElement).parentElement) {
+    return cacheReactKey((el as HTMLElement).parentElement!);
+  }
+  return el;
+}
+
+const SYMBOL_VNID = Symbol('_LCNodeId');
+
+function getClosestNodeId(element: Element): string | null {
+  let el: any = element;
+  if (el) {
+    el = cacheReactKey(el);
+  }
+  while (el) {
+    if (SYMBOL_VNID in el) {
+      return el[SYMBOL_VNID];
+    }
+    if (el[REACT_KEY]) {
+      return getNodeId(el[REACT_KEY]);
+    }
+    el = el.parentElement;
+  }
+  return null;
+}
+
+function getNodeId(instance: any): string {
+  if (instance.stateNode && SYMBOL_VNID in instance.stateNode) {
+    return instance.stateNode[SYMBOL_VNID];
+  }
+  return getNodeId(instance.return);
+}
+
+function checkInstanceMounted(instance: any): boolean {
+  if (isElement(instance)) {
+    return instance.parentElement != null;
+  }
+  return true;
+}
+
+export class SimulatorRenderer {
+  readonly isSimulatorRenderer = true;
+  private dispose?: () => void;
+  constructor() {
+    if (!host) {
+      return;
+    }
+    this.dispose = host.connect(this, () => {
+      // sync layout config
+
+      // sync schema
+      this._schema = host.document.schema;
+
+      // sync designMode
+
+      // sync suspended
+
+      // sync scope
+
+      // sync device
+    });
+    host.componentsConsumer.consume(async (data) => {
+      if (data.componentsAsset) {
+        await this.load(data.componentsAsset);
+      }
+
+      // sync componetsMap
+      this._componentsMap = data.componentsMap;
+    });
+    host.injectionConsumer.consume((data) => {
+      // sync utils, i18n, contants,... config
+      this._appContext = {
+        utils: {},
+        constants: {
+          name: 'demo',
+        },
+      };
+    });
+  }
+
+  @computed get layout(): any {
+    // TODO: parse layout Component
+    return null;
+  }
+
+  @obx.ref private _schema?: RootSchema;
+  @computed get schema(): any {
+    return this._schema;
+  }
+  @obx.ref private _componentsMap = {};
+  @computed get components(): object {
+    // 根据 device 选择不同组件，进行响应式
+    // 更好的做法是，根据 device 选择加载不同的组件资源，甚至是 simulatorUrl
+    return buildComponents(this._componentsMap);
+  }
+  // context from: utils、constants、history、location、match
+  @obx.ref private _appContext = {};
+  @computed get context(): any {
+    return this._appContext;
+  }
+
+  @computed get designMode(): any {
+    return 'border';
+  }
+  @computed get componentsMap(): any {
+    return this._componentsMap;
+  }
+  @computed get suspended(): any {
+    return false;
+  }
+  @computed get scope(): any {
+    return null;
+  }
+  /**
+   * 加载资源
+   */
+  load(asset: Asset): Promise<any> {
+    return loader.load(asset);
+  }
+  private instancesMap = new Map<string, ReactInstance[]>();
+  mountInstance(id: string, instance: ReactInstance | null) {
+    const instancesMap = this.instancesMap;
+    if (instance == null) {
+      let instances = this.instancesMap.get(id);
+      if (instances) {
+        instances = instances.filter(checkInstanceMounted);
+        if (instances.length > 0) {
+          instancesMap.set(id, instances);
+        } else {
+          instancesMap.delete(id);
+        }
+      }
+      return;
+    }
+    if (isElement(instance)) {
+      cacheReactKey(instance);
+    } else if (!(instance as any)[SYMBOL_VNID]) {
+      const origUnmout = instance.componentWillUnmount;
+      // hack! delete instance from map
+      instance.componentWillUnmount = function() {
+        const instances = instancesMap.get(id);
+        if (instances) {
+          const i = instances.indexOf(instance);
+          if (i > -1) {
+            instances.splice(i, 1);
+          }
+        }
+        origUnmout && origUnmout.call(this);
+      };
+    }
+
+    (instance as any)[SYMBOL_VNID] = id;
+    let instances = this.instancesMap.get(id);
+    if (instances) {
+      instances = instances.filter(checkInstanceMounted);
+      instances.push(instance);
+      instancesMap.set(id, instances);
+    } else {
+      instancesMap.set(id, [instance]);
+    }
+  }
+  private ctxMap = new Map<string, object>();
+  mountContext(id: string, ctx: object) {
+    this.ctxMap.set(id, ctx);
+  }
+
+  getComponentInstance(id: string): ReactInstance[] | null {
+    return this.instancesMap.get(id) || null;
+  }
+
+  getClosestNodeId(element: Element): string | null {
+    return getClosestNodeId(element);
+  }
+
+  private _running: boolean = false;
+  run() {
+    if (this._running) {
+      return;
+    }
+    this._running = true;
+    const containerId = 'app';
+    let container = document.getElementById(containerId);
+    if (!container) {
+      container = document.createElement('div');
+      document.body.appendChild(container);
+      container.id = containerId;
+    }
+
+    reactRender(createElement(SimulatorRendererView, { renderer: this }), container);
+  }
+}
+
+function accessLibrary(library: string | object) {
+  if (typeof library !== 'string') {
+    return library;
+  }
+
+  return (window as any)[library];
+}
+
+function getSubComponent(component: any, paths: string[]) {
+  const l = paths.length;
+  if (l < 1) {
+    return component;
+  }
+  let i = 0;
+  while (i < l) {
+    const key = paths[i]!;
+    try {
+      component = (component as any)[key];
+    } catch (e) {
+      return null;
+    }
+    if (!component) {
+      return null;
+    }
+    i++;
+  }
+  return component;
+}
+
+function findComponent(componentName: string, npm?: NpmInfo) {
+  if (!npm) {
+    return accessLibrary(componentName);
+  }
+  const libraryName = npm.exportName || npm.componentName || componentName;
+  const component = accessLibrary(libraryName);
+  const paths = npm.subName ? npm.subName.split('.') : [];
+  if (npm.destructuring) {
+    paths.unshift(libraryName);
+  }
+  return getSubComponent(component, paths);
+}
+
+function buildComponents(componentsMap: { [componentName: string]: ComponentDescriptionSpec }) {
+  const components: any = {};
+  Object.keys(componentsMap).forEach(componentName => {
+    components[componentName] = findComponent(componentName, componentsMap[componentName].npm);
+  });
+  return components;
+}
+
+export default new SimulatorRenderer();
diff --git a/packages/designer/src/builtins/simulator/utils/asset.ts b/packages/designer/src/builtins/simulator/utils/asset.ts
new file mode 100644
index 000000000..e37bcf831
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/utils/asset.ts
@@ -0,0 +1,76 @@
+export interface AssetItem {
+  type: AssetType;
+  content?: string | null;
+  level?: AssetLevel;
+  id?: string;
+}
+
+export enum AssetLevel {
+  // 基础依赖库
+  BaseDepends = 1,
+  // 基础组件库
+  BaseComponents = 2,
+  // 主题包
+  Theme = 3,
+  // 运行时
+  Runtime = 4,
+  // 业务组件
+  Components = 5,
+  // 应用 & 页面
+  App = 6,
+}
+
+export type URL = string;
+
+export enum AssetType {
+  JSUrl = 'jsUrl',
+  CSSUrl = 'cssUrl',
+  CSSText = 'cssText',
+  JSText = 'jsText',
+  Bundle = 'bundel',
+}
+
+export interface AssetBundle {
+  type: AssetType.Bundle;
+  level?: AssetLevel;
+  assets?: Asset | AssetList | null;
+}
+
+export type Asset = AssetList | AssetBundle | AssetItem | URL;
+
+export type AssetList = Array<Asset | undefined | null>;
+
+export function isAssetItem(obj: any): obj is AssetItem {
+  return obj && obj.type;
+}
+
+export function isAssetBundle(obj: any): obj is AssetBundle {
+  return obj && obj.type === AssetType.Bundle;
+}
+
+export function isCSSUrl(url: string): boolean {
+  return /\.css$/.test(url);
+}
+
+export function assetBundle(assets?: Asset | AssetList | null, level?: AssetLevel): AssetBundle | null {
+  if (!assets) {
+    return null;
+  }
+  return {
+    type: AssetType.Bundle,
+    assets,
+    level,
+  };
+}
+
+export function assetItem(type: AssetType, content?: string | null, level?: AssetLevel, id?: string): AssetItem | null {
+  if (content) {
+    return null;
+  }
+  return {
+    type,
+    content,
+    level,
+    id,
+  };
+}
diff --git a/packages/designer/src/utils/cursor.less b/packages/designer/src/builtins/simulator/utils/cursor.less
similarity index 100%
rename from packages/designer/src/utils/cursor.less
rename to packages/designer/src/builtins/simulator/utils/cursor.less
diff --git a/packages/designer/src/utils/cursor.ts b/packages/designer/src/builtins/simulator/utils/cursor.ts
similarity index 100%
rename from packages/designer/src/utils/cursor.ts
rename to packages/designer/src/builtins/simulator/utils/cursor.ts
diff --git a/packages/designer/src/builtins/simulator/utils/intrinsic-mocks.ts b/packages/designer/src/builtins/simulator/utils/intrinsic-mocks.ts
new file mode 100644
index 000000000..a269fde2c
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/utils/intrinsic-mocks.ts
@@ -0,0 +1,284 @@
+import { ReactElement, createElement, ReactType } from 'react';
+import classNames from 'classnames';
+
+const mocksCache = new Map<string, (props: any) => ReactElement>();
+// endpoint element: input,select,video,audio,canvas,textarea
+//
+function getBlockElement(tag: string): (props: any) => ReactElement {
+  if (mocksCache.has(tag)) {
+    return mocksCache.get(tag)!;
+  }
+  const mock = ({ className, children, ...rest }: any = {}) => {
+    const props = {
+      ...rest,
+      className: classNames('my-intrinsic-container', className),
+    };
+    return createElement(tag, props, children);
+  };
+
+  mock.prototypeConfig = {
+    uri: `@html:${tag}`,
+    selfControlled: true,
+    ...(prototypeMap as any)[tag],
+  };
+
+  mocksCache.set(tag, mock);
+  return mock;
+}
+
+const HTMLBlock = [
+  'div',
+  'p',
+  'article',
+  'h1',
+  'h2',
+  'h3',
+  'h4',
+  'h5',
+  'h6',
+  'aside',
+  'blockquote',
+  'footer',
+  'form',
+  'header',
+  'table',
+  'tbody',
+  'section',
+  'ul',
+  'li',
+  'span',
+];
+
+// eslint-disable-next-line @typescript-eslint/no-unused-vars
+const HTMLInlineBlock = ['a', 'b', 'span', 'em'];
+export function getIntrinsicMock(tag: string): ReactType {
+  if (HTMLBlock.indexOf(tag) > -1) {
+    return getBlockElement(tag);
+  }
+
+  return tag as any;
+}
+
+const prototypeMap = {
+  div: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: 'p',
+    },
+  },
+  ul: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      childWhitelist: 'li',
+    },
+  },
+  p: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: 'button,p',
+    },
+  },
+  li: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      parentWhitelist: 'ui,ol',
+    },
+  },
+  span: {
+    isContainer: true,
+    selfControlled: true,
+  },
+  a: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!a',
+    },
+  },
+  b: {
+    isContainer: true,
+    selfControlled: true,
+  },
+  strong: {
+    isContainer: true,
+    selfControlled: true,
+  },
+  em: {
+    isContainer: true,
+    selfControlled: true,
+  },
+  i: {
+    isContainer: true,
+    selfControlled: true,
+  },
+  form: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!form,!button',
+    },
+  },
+  table: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  caption: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  select: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  button: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  input: {
+    isContainer: false,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button,!h1,!h2,!h3,!h4,!h5',
+    },
+  },
+  textarea: {
+    isContainer: false,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  image: {
+    isContainer: false,
+    selfControlled: true,
+  },
+  canvas: {
+    isContainer: false,
+    selfControlled: true,
+  },
+  br: {
+    isContainer: false,
+    selfControlled: true,
+  },
+  h1: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!p,!h1,!h2,!h3,!h4,!h5,!h6,!button',
+    },
+  },
+  h2: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!p,!h1,!h2,!h3,!h4,!h5,!h6,!button',
+    },
+  },
+  h3: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!p,!h1,!h2,!h3,!h4,!h5,!h6,!button',
+    },
+  },
+  h4: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!p,!h1,!h2,!h3,!h4,!h5,!h6,!button',
+    },
+  },
+  h5: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!p,!h1,!h2,!h3,!h4,!h5,!h6,!button',
+    },
+  },
+  h6: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!p,!h1,!h2,!h3,!h4,!h5,!h6,!button',
+    },
+  },
+  article: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  aside: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  footer: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  header: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  blockquote: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  address: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  section: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!p,!h1,!h2,!h3,!h4,!h5,!h6,!button',
+    },
+  },
+  summary: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+  nav: {
+    isContainer: true,
+    selfControlled: true,
+    nesting: {
+      ancestorBlacklist: '!button',
+    },
+  },
+};
diff --git a/packages/designer/src/builtins/simulator/utils/loader.ts b/packages/designer/src/builtins/simulator/utils/loader.ts
new file mode 100644
index 000000000..097912697
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/utils/loader.ts
@@ -0,0 +1,105 @@
+import { load, evaluate } from './script';
+import StylePoint from './style';
+import { Asset, AssetLevel, AssetType, AssetList, isAssetBundle, isAssetItem, assetItem, isCSSUrl, AssetItem } from './asset';
+
+function parseAssetList(scripts: any, styles: any, assets: AssetList, level?: AssetLevel) {
+  for (let asset of assets) {
+    parseAsset(scripts, styles, asset, level);
+  }
+}
+
+function parseAsset(scripts: any, styles: any, asset: Asset | undefined | null, level?: AssetLevel) {
+  if (!asset) {
+    return;
+  }
+  if (Array.isArray(asset)) {
+    return parseAssetList(scripts, styles, asset, level);
+  }
+
+  if (isAssetBundle(asset)) {
+    if (asset.assets) {
+      if (Array.isArray(asset.assets)) {
+        parseAssetList(scripts, styles, asset.assets, asset.level || level);
+      } else {
+        parseAsset(scripts, styles, asset.assets, asset.level || level);
+      }
+      return;
+    }
+    return;
+  }
+
+  if (!isAssetItem(asset)) {
+    asset = assetItem(isCSSUrl(asset) ? AssetType.CSSUrl : AssetType.JSUrl, asset, level)!;
+  }
+
+  let lv = asset.level || level;
+
+  if (!lv || AssetLevel[lv] == null) {
+    lv = AssetLevel.App
+  }
+
+  asset.level = lv;
+  if (asset.type === AssetType.CSSUrl || asset.type == AssetType.CSSText) {
+    styles[lv].push(asset);
+  } else {
+    scripts[lv].push(asset);
+  }
+}
+
+export class AssetLoader {
+  async load(asset: Asset) {
+    const styles: any = {};
+    const scripts: any = {};
+    Object.keys(AssetLevel).forEach((key) => {
+      const v = (AssetLevel as any)[key];
+      styles[v] = [];
+      scripts[v] = [];
+    });
+    parseAsset(scripts, styles, asset);
+    const styleQueue: AssetItem[] = styles[AssetLevel.BaseDepends].concat(
+      styles[AssetLevel.BaseComponents],
+      styles[AssetLevel.Theme],
+      styles[AssetLevel.Runtime],
+      styles[AssetLevel.App],
+    );
+    const scriptQueue: AssetItem[] = scripts[AssetLevel.BaseDepends].concat(
+      scripts[AssetLevel.BaseComponents],
+      scripts[AssetLevel.Theme],
+      scripts[AssetLevel.Runtime],
+      scripts[AssetLevel.App],
+    );
+    await Promise.all(
+      styleQueue.map(({ content, level, type, id }) => this.loadStyle(content, level!, type === AssetType.CSSUrl, id)),
+    );
+    await Promise.all(
+      scriptQueue.map(({ content, type }) => this.loadScript(content, type === AssetType.JSUrl)),
+    );
+  }
+
+  private stylePoints = new Map<string, StylePoint>();
+  private loadStyle(content: string | undefined | null, level: AssetLevel, isUrl?: boolean, id?: string) {
+    if (!content) {
+      return;
+    }
+    let point: StylePoint | undefined;
+    if (id) {
+      point = this.stylePoints.get(id);
+      if (!point) {
+        point = new StylePoint(level, id);
+        this.stylePoints.set(id, point);
+      }
+    } else {
+      point = new StylePoint(level);
+    }
+    return isUrl ? point.applyUrl(content) : point.applyText(content);
+  }
+
+  private loadScript(content: string | undefined | null, isUrl?: boolean) {
+    if (!content) {
+      return;
+    }
+    return isUrl ? load(content) : evaluate(content);
+  }
+}
+
+export default new AssetLoader();
diff --git a/packages/designer/src/utils/react.ts b/packages/designer/src/builtins/simulator/utils/react.ts
similarity index 93%
rename from packages/designer/src/utils/react.ts
rename to packages/designer/src/builtins/simulator/utils/react.ts
index 33feb4c70..3623c8e0d 100644
--- a/packages/designer/src/utils/react.ts
+++ b/packages/designer/src/builtins/simulator/utils/react.ts
@@ -1,5 +1,5 @@
 import { ReactInstance } from 'react';
-import { isDOMNode, isElement } from './dom';
+import { isDOMNode, isElement } from '../../../utils/dom';
 
 const FIBER_KEY = '_reactInternalFiber';
 
diff --git a/packages/designer/src/utils/script.ts b/packages/designer/src/builtins/simulator/utils/script.ts
similarity index 63%
rename from packages/designer/src/utils/script.ts
rename to packages/designer/src/builtins/simulator/utils/script.ts
index 9577946c3..97e1001aa 100644
--- a/packages/designer/src/utils/script.ts
+++ b/packages/designer/src/builtins/simulator/utils/script.ts
@@ -1,4 +1,4 @@
-import { createDefer } from './create-defer';
+import { createDefer } from '../../../utils/create-defer';
 
 export function evaluate(script: string) {
   const scriptEl = document.createElement('script');
@@ -36,3 +36,19 @@ export function load(url: string) {
 
   return i.promise();
 }
+
+export function evaluateExpression(expr: string) {
+  // eslint-disable-next-line no-new-func
+  const fn = new Function(expr);
+  return fn();
+}
+
+export function newFunction(args: string, code: string) {
+  try {
+    // eslint-disable-next-line no-new-func
+    return new Function(args, code);
+  } catch (e) {
+    console.warn('Caught error, Cant init func');
+    return null;
+  }
+}
diff --git a/packages/designer/src/builtins/simulator/utils/style.ts b/packages/designer/src/builtins/simulator/utils/style.ts
new file mode 100644
index 000000000..cd29c793a
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/utils/style.ts
@@ -0,0 +1,73 @@
+import { createDefer } from '../../../utils/create-defer';
+
+export default class StylePoint {
+  private lastContent: string | undefined;
+  private lastUrl: string | undefined;
+  private placeholder: Element | Text;
+
+  constructor(readonly level: number, readonly id?: string) {
+    let placeholder: any;
+    if (id) {
+      placeholder = document.head.querySelector(`style[data-id="${id}"]`);
+    }
+    if (!placeholder) {
+      placeholder = document.createTextNode('');
+      const meta = document.head.querySelector(`meta[level="${level}"]`);
+      if (meta) {
+        document.head.insertBefore(placeholder, meta);
+      } else {
+        document.head.appendChild(placeholder);
+      }
+    }
+    this.placeholder = placeholder;
+  }
+
+  applyText(content: string) {
+    if (this.lastContent === content) {
+      return;
+    }
+    this.lastContent = content;
+    this.lastUrl = undefined;
+    const element = document.createElement('style');
+    element.setAttribute('type', 'text/css');
+    if (this.id) {
+      element.setAttribute('data-id', this.id);
+    }
+    element.appendChild(document.createTextNode(content));
+    document.head.insertBefore(element, this.placeholder.parentNode === document.head ? this.placeholder.nextSibling : null);
+    document.head.removeChild(this.placeholder);
+    this.placeholder = element;
+  }
+
+  applyUrl(url: string) {
+    if (this.lastUrl === url) {
+      return;
+    }
+    this.lastContent = undefined;
+    this.lastUrl = url;
+    const element = document.createElement('link');
+    element.onload = onload;
+    element.onerror = onload;
+
+    const i = createDefer();
+    function onload(e: any) {
+      element.onload = null;
+      element.onerror = null;
+      if (e.type === 'load') {
+        i.resolve();
+      } else {
+        i.reject();
+      }
+    }
+
+    element.href = url;
+    element.rel = 'stylesheet';
+    if (this.id) {
+      element.setAttribute('data-id', this.id);
+    }
+    document.head.insertBefore(element, this.placeholder.parentNode === document.head ? this.placeholder.nextSibling : null);
+    document.head.removeChild(this.placeholder);
+    this.placeholder = element;
+    return i.promise();
+  }
+}
diff --git a/packages/designer/src/builtins/simulator/utils/vision-types.js b/packages/designer/src/builtins/simulator/utils/vision-types.js
new file mode 100644
index 000000000..86a8a42b5
--- /dev/null
+++ b/packages/designer/src/builtins/simulator/utils/vision-types.js
@@ -0,0 +1,198 @@
+import PropTypes from 'prop-types';
+
+export const primitiveTypeMaps = {
+  string: {
+    defaultValue: '',
+    display: 'inline',
+    setter: 'TextSetter',
+  },
+  number: {
+    display: 'inline',
+    setter: 'NumberSetter'  // extends TextSetter
+  },
+  array: {
+    defaultValue: [],
+    display: 'inline',
+    // itemType: any
+    setter: 'ArraySetter' // extends ExpressionSetter
+  },
+  bool: {
+    defaultValue: false,
+    display: 'inline',
+    setter: 'BoolSetter'
+  },
+  func: {
+    defaultValue: () => {},
+    display: 'inline',
+    setter: 'FunctionSetter' // extends ExpressionSetter
+  },
+  object: {
+    defaultValue: {},
+    display: 'inline',
+    // itemType: any
+    setter: 'ObjectSetter' // extends ExpressionSetter
+  },
+  // Anything that can be rendered: numbers, strings, elements or an array
+  // (or fragment) containing these types.
+  node: {
+    defaultValue: '',
+    display: 'inline',
+    setter: 'FragmentSetter',
+  },
+  // A React element.
+  element: {
+    display: 'inline',
+    setter: 'JSXSetter', // extends ExpressionSetter
+  },
+  symbol: {
+    display: 'inline',
+    setter: 'ExpressionSetter',
+  },
+  any: {
+    display: 'inline',
+    setter: 'ExpressionSetter',
+  }
+};
+
+function makeRequired(propType, visionType) {
+  function visionCheckTypeIsRequired(...rest) {
+    return propType.isRequired(...rest);
+  }
+  visionCheckTypeIsRequired.visionType = {
+    ...visionType,
+    required: true,
+  };
+  return visionCheckTypeIsRequired;
+}
+
+function define(propType = PropTypes.any, visionType = {}) {
+  if (!propType._inner && propType.name !== 'visionCheckType') {
+    propType.visionType = visionType;
+  }
+  function visionCheckType(...rest) {
+    return propType(...rest);
+  }
+  visionCheckType.visionType = visionType;
+  visionCheckType.isRequired = makeRequired(propType, visionType);
+  return visionCheckType;
+}
+
+const VisionTypes = {
+  ...PropTypes,
+  define,
+};
+
+export default VisionTypes;
+
+// override primitive type chechers
+Object.keys(primitiveTypeMaps).forEach((type) => {
+  const propType = PropTypes[type];
+  if (!propType) {
+    return;
+  }
+  propType._inner = true;
+  VisionTypes[type] = define(propType, primitiveTypeMaps[type]);
+});
+
+// You can ensure that your prop is limited to specific values by treating
+// it as an enum.
+VisionTypes.oneOf = (list) => {
+  return define(PropTypes.oneOf(list), {
+    defaultValue: list && list[0],
+    display: 'inline',
+    setter: {
+      type: 'SelectSetter',
+      options: list,
+    },
+  });
+};
+
+// An array of a certain type
+VisionTypes.arrayOf = (type) => {
+  return define(PropTypes.arrayOf(type), {
+    defaultValue: [],
+    display: 'inline',
+    setter: {
+      type: 'ArraySetter', // list
+      itemType: type.visionType || primitiveTypeMaps.any, // addable type
+    }
+  });
+};
+
+// An object with property values of a certain type
+VisionTypes.objectOf = (type) => {
+  return define(PropTypes.objectOf(type), {
+    defaultValue: {},
+    display: 'inline',
+    setter: {
+      type: 'ObjectSetter', // all itemType
+      itemType: type.visionType || primitiveTypeMaps.any, // addable type
+    }
+  });
+};
+
+// An object that could be one of many types
+VisionTypes.oneOfType = (types) => {
+  const itemType = types.map(type => type.visionType || primitiveTypeMaps.any);
+  return define(PropTypes.oneOfType(types), {
+    defaultValue: itemType[0] && itemType[0].defaultValue,
+    display: 'inline',
+    setter: {
+      type: 'OneOfTypeSetter',
+      itemType, // addable type
+    },
+  });
+};
+
+
+// You can also declare that a prop is an instance of a class. This uses
+// JS's instanceof operator.
+VisionTypes.instanceOf = (classType) => {
+  return define(PropTypes.instanceOf(classType), {
+    display: 'inline',
+    setter: 'ExpressionSetter',
+  });
+};
+
+// An object with warnings on extra properties
+VisionTypes.exact = (typesMap) => {
+  const exactTypes = {};
+  const defaultValue = {};
+  Object.keys(typesMap).forEach(key => {
+    exactTypes[key] = typesMap[key].visionType || primitiveTypeMaps.any;
+    defaultValue[key] = exactTypes[key].defaultValue;
+  });
+  return define(PropTypes.exact(typesMap), {
+    defaultValue,
+    display: 'inline',
+    setter: {
+      type: 'ObjectSetter', // all itemType
+      exactTypes,
+    },
+  });
+}
+
+// An object taking on a particular shape
+VisionTypes.shape = (typesMap) => {
+  const exactTypes = {};
+  const defaultValue = {};
+  Object.keys(typesMap).forEach(key => {
+    exactTypes[key] = typesMap[key].visionType || primitiveTypeMaps.any;
+    defaultValue[key] = exactTypes[key].defaultValue;
+  });
+  return define(PropTypes.shape(typesMap), {
+    defaultValue,
+    display: 'inline',
+    setter: {
+      type: 'ObjectSetter', // all itemType
+      exactTypes,
+      itemType: primitiveTypeMaps.any, // addable type
+    },
+  });
+};
+
+
+// color
+// time
+// date
+// range
diff --git a/packages/designer/src/designer/active-tracker.ts b/packages/designer/src/designer/active-tracker.ts
new file mode 100644
index 000000000..3bcdc7b7e
--- /dev/null
+++ b/packages/designer/src/designer/active-tracker.ts
@@ -0,0 +1,23 @@
+import { EventEmitter } from 'events';
+import { LocationDetail } from './location';
+import Node, { isNode } from './document/node/node';
+
+interface ActiveTarget {
+  node: Node;
+  detail?: LocationDetail;
+}
+
+export default class ActiveTracker {
+  private emitter = new EventEmitter();
+
+  track(target: ActiveTarget | Node) {
+    this.emitter.emit('change', isNode(target) ? { node: target } : target);
+  }
+
+  onChange(fn: (target: ActiveTarget) => void): () => void {
+    this.emitter.addListener('change', fn);
+    return () => {
+      this.emitter.removeListener('change', fn);
+    };
+  }
+}
diff --git a/packages/designer/src/designer/designer-view.tsx b/packages/designer/src/designer/designer-view.tsx
new file mode 100644
index 000000000..6611fb1f3
--- /dev/null
+++ b/packages/designer/src/designer/designer-view.tsx
@@ -0,0 +1,51 @@
+import { Component } from 'react';
+import classNames from 'classnames';
+import Designer, { DesignerProps } from './designer';
+import BuiltinDragGhostComponent from '../builtins/drag-ghost';
+import ProjectView from './project-view';
+import './designer.less';
+
+export default class DesignerView extends Component<DesignerProps> {
+  readonly designer: Designer;
+
+  constructor(props: any) {
+    super(props);
+    this.designer = new Designer(props);
+  }
+
+  shouldComponentUpdate(nextProps: DesignerProps) {
+    this.designer.setProps(nextProps);
+    const props = this.props;
+    if (
+      nextProps.className !== props.className ||
+      nextProps.style != props.style ||
+      nextProps.dragGhostComponent !== props.dragGhostComponent
+    ) {
+      return true;
+    }
+    return false;
+  }
+
+  componentDidMount() {
+    const { onMount } = this.props;
+    if (onMount) {
+      onMount(this.designer);
+    }
+  }
+
+  componentWillMount() {
+    this.designer.purge();
+  }
+
+  render() {
+    const { className, style, dragGhostComponent } = this.props;
+    const DragGhost = dragGhostComponent || BuiltinDragGhostComponent;
+
+    return (
+      <div className={classNames('lc-designer', className)} style={style}>
+        <DragGhost designer={this.designer} />
+        <ProjectView designer={this.designer} />
+      </div>
+    );
+  }
+}
diff --git a/packages/designer/src/designer/designer.less b/packages/designer/src/designer/designer.less
new file mode 100644
index 000000000..e69de29bb
diff --git a/packages/designer/src/designer/designer.ts b/packages/designer/src/designer/designer.ts
index 9d09844c7..b2ec25c2d 100644
--- a/packages/designer/src/designer/designer.ts
+++ b/packages/designer/src/designer/designer.ts
@@ -1,6 +1,6 @@
 import { ComponentType } from 'react';
 import { obx, computed } from '@recore/obx';
-import { SimulatorView as BuiltinSimulatorView } from '../builtins/simulator';
+import BuiltinSimulatorView from '../builtins/simulator';
 import Project from './project';
 import { ProjectSchema } from './schema';
 import Dragon, { isDragNodeObject, isDragNodeDataObject, LocateEvent, DragObject } from './dragon';
diff --git a/packages/designer/src/designer/document/document-model.ts b/packages/designer/src/designer/document/document-model.ts
new file mode 100644
index 000000000..ee72f214c
--- /dev/null
+++ b/packages/designer/src/designer/document/document-model.ts
@@ -0,0 +1,349 @@
+import Project from '../project';
+import { RootSchema, NodeData, isDOMText, isJSExpression, NodeSchema } from '../schema';
+import Node, { isNodeParent, insertChildren, insertChild, NodeParent } from './node/node';
+import { Selection } from './selection';
+import RootNode from './node/root-node';
+import { ISimulator, ComponentInstance, Component } from '../simulator';
+import { computed, obx } from '@recore/obx';
+import Location from '../location';
+import { ComponentConfig } from './node/component-config';
+import { isElement } from '../../utils/dom';
+
+export default class DocumentModel {
+  /**
+   * 根节点 类型有：Page/Component/Block
+   */
+  readonly rootNode: RootNode;
+  /**
+   * 文档编号
+   */
+  readonly id: string;
+  /**
+   * 选区控制
+   */
+  readonly selection: Selection = new Selection(this);
+  /**
+   * 操作记录控制
+   */
+  // TODO
+  // readonly history: History = new History(this);
+
+  private nodesMap = new Map<string, Node>();
+  private nodes = new Set<Node>();
+  private seqId = 0;
+  private _simulator?: ISimulator;
+
+  /**
+   * 模拟器
+   */
+  get simulator(): ISimulator | null {
+    return this._simulator || null;
+  }
+
+  get fileName(): string {
+    return (this.rootNode.extras.get('fileName')?.value as string) || this.id;
+  }
+
+  set fileName(fileName: string) {
+    this.rootNode.extras.get('fileName', true).value = fileName;
+  }
+
+  constructor(readonly project: Project, schema: RootSchema) {
+    this.rootNode = new RootNode(this, schema);
+    this.id = this.rootNode.id;
+  }
+
+  readonly designer = this.project.designer;
+
+  /**
+   * 生成唯一id
+   */
+  nextId() {
+    return (++this.seqId).toString(36).toLocaleLowerCase();
+  }
+
+  /**
+   * 根据 id 获取节点
+   */
+  getNode(id: string): Node | null {
+    return this.nodesMap.get(id) || null;
+  }
+
+  /**
+   * 是否存在节点
+   */
+  hasNode(id: string): boolean {
+    const node = this.getNode(id);
+    return node ? !node.isPurged : false;
+  }
+
+  /**
+   * 根据 schema 创建一个节点
+   */
+  createNode(data: NodeData): Node {
+    let schema: any;
+    if (isDOMText(data) || isJSExpression(data)) {
+      schema = {
+        componentName: '#frag',
+        children: data,
+      };
+    } else {
+      schema = data;
+    }
+    const node = new Node(this, schema);
+    this.nodesMap.set(node.id, node);
+    this.nodes.add(node);
+    return node;
+  }
+
+  /**
+   * 插入一个节点
+   */
+  insertNode(parent: NodeParent, thing: Node | NodeData, at?: number | null, copy?: boolean): Node {
+    return insertChild(parent, thing, at, copy);
+  }
+
+  /**
+   * 插入多个节点
+   */
+  insertNodes(parent: NodeParent, thing: Node[] | NodeData[], at?: number | null, copy?: boolean) {
+    return insertChildren(parent, thing, at, copy);
+  }
+
+  /**
+   * 移除一个节点
+   */
+  removeNode(idOrNode: string | Node) {
+    let id: string;
+    let node: Node | null;
+    if (typeof idOrNode === 'string') {
+      id = idOrNode;
+      node = this.getNode(id);
+    } else {
+      node = idOrNode;
+      id = node.id;
+    }
+    if (!node) {
+      return;
+    }
+    this.internalRemoveAndPurgeNode(node);
+  }
+
+  /**
+   * 内部方法，请勿调用
+   */
+  internalRemoveAndPurgeNode(node: Node) {
+    if (!this.nodes.has(node)) {
+      return;
+    }
+    this.nodesMap.delete(node.id);
+    this.nodes.delete(node);
+    node.remove();
+  }
+
+  @obx.ref private _dropLocation: Location | null = null;
+  /**
+   * 内部方法，请勿调用
+   */
+  internalSetDropLocation(loc: Location | null) {
+    this._dropLocation = loc;
+  }
+
+  /**
+   * 投放插入位置标记
+   */
+  get dropLocation() {
+    return this._dropLocation;
+  }
+
+  /**
+   * 包裹当前选区中的节点
+   */
+  wrapWith(schema: NodeSchema): Node | null {
+    const nodes = this.selection.getTopNodes();
+    if (nodes.length < 1) {
+      return null;
+    }
+    const wrapper = this.createNode(schema);
+    if (isNodeParent(wrapper)) {
+      const first = nodes[0];
+      // TODO: check nesting rules x 2
+      insertChild(first.parent!, wrapper, first.index);
+      insertChildren(wrapper, nodes);
+      this.selection.select(wrapper.id);
+      return wrapper;
+    }
+
+    this.removeNode(wrapper);
+    return null;
+  }
+
+  /**
+   * 导出 schema 数据
+   */
+  get schema(): RootSchema {
+    return this.rootNode.schema as any;
+  }
+
+  /**
+   * 导出节点数据
+   */
+  getNodeSchema(id: string): NodeData | null {
+    const node = this.getNode(id);
+    if (node) {
+      return node.schema;
+    }
+    return null;
+  }
+
+  /**
+   * 是否已修改
+   */
+  isModified() {
+    // return !this.history.isSavePoint();
+  }
+
+  /**
+   * 提供给模拟器的参数
+   */
+  @computed get simulatorProps(): object {
+    let simulatorProps = this.designer.simulatorProps;
+    if (typeof simulatorProps === 'function') {
+      simulatorProps = simulatorProps(this);
+    }
+    return {
+      ...simulatorProps,
+      documentContext: this,
+      onMount: this.mountSimulator.bind(this),
+    };
+  }
+
+  private mountSimulator(simulator: ISimulator) {
+    this._simulator = simulator;
+    // TODO: emit simulator mounted
+  }
+
+  /**
+   * 根据节点取得视图实例，在循环等场景会有多个，依赖 simulator 的接口
+   */
+  getComponentInstance(node: Node): ComponentInstance[] | null {
+    if (this.simulator) {
+      this.simulator.getComponentInstance(node);
+    }
+    return null;
+  }
+
+  getComponent(componentName: string): any {
+    return this.simulator!.getComponent(componentName);
+  }
+
+  getComponentConfig(component: Component, componentName: string): ComponentConfig {
+    // TODO: guess componentConfig from component by simulator
+    return this.designer.getComponentConfig(componentName);
+  }
+
+  /**
+   * 通过 DOM 节点获取节点，依赖 simulator 的接口
+   */
+  getNodeFromElement(target: Element | null): Node | null {
+    if (!this.simulator || !target) {
+      return null;
+    }
+
+    const id = this.simulator.getClosestNodeId(target);
+    if (!id) {
+      return null;
+    }
+    return this.getNode(id) as Node;
+  }
+
+  /**
+   * 获得到的结果是一个数组
+   * 表示一个实例对应多个外层 DOM 节点，依赖 simulator 的接口
+   */
+  getDOMNodes(instance: ComponentInstance): Array<Element | Text> | null {
+    if (!this.simulator) {
+      return null;
+    }
+
+    if (isElement(instance)) {
+      return [instance];
+    }
+
+    return this.simulator.findDOMNodes(instance);
+  }
+
+  private _opened: boolean = true;
+  private _suspensed: boolean = false;
+
+  /**
+   * 是否不是激活的
+   */
+  get suspensed(): boolean {
+    return this._suspensed || !this._opened;
+  }
+
+  /**
+   * 与 suspensed 相反，是否是激活的，这个函数可能用的更多一点
+   */
+  get actived(): boolean {
+    return !this._suspensed;
+  }
+
+  /**
+   * 是否打开
+   */
+  get opened() {
+    return this._opened;
+  }
+
+  /**
+   * 切换激活，只有打开的才能激活
+   * 不激活，打开之后切换到另外一个时发生，比如 tab 视图，切换到另外一个标签页
+   */
+  private setSuspense(flag: boolean) {
+    if (!this._opened && !flag) {
+      return;
+    }
+    this._suspensed = flag;
+    this.simulator?.setSuspense(flag);
+    if (!flag) {
+      this.project.checkExclusive(this);
+    }
+  }
+
+  suspense() {
+    this.setSuspense(true);
+  }
+
+  active() {
+    this.setSuspense(false);
+  }
+
+  /**
+   * 打开，已载入，默认建立时就打开状态，除非手动关闭
+   */
+  open(): void {
+    this._opened = true;
+    if (this._suspensed) {
+      this.setSuspense(false);
+    }
+  }
+
+  /**
+   * 关闭，相当于 sleep，仍然缓存，停止一切响应，如果有发生的变更没被保存，仍然需要去取数据保存
+   */
+  close(): void {
+    this.setSuspense(true);
+    this._opened = false;
+  }
+
+  /**
+   * 从项目中移除
+   */
+  remove() {}
+}
+
+export function isDocumentModel(obj: any): obj is DocumentModel {
+  return obj && obj.rootNode;
+}
diff --git a/packages/designer/src/designer/document/document-view.tsx b/packages/designer/src/designer/document/document-view.tsx
new file mode 100644
index 000000000..4a599e624
--- /dev/null
+++ b/packages/designer/src/designer/document/document-view.tsx
@@ -0,0 +1,35 @@
+import { Component } from 'react';
+import DocumentModel from './document-model';
+import { observer } from '@recore/core-obx';
+import classNames from 'classnames';
+
+@observer
+export default class DocumentView extends Component<{ document: DocumentModel }> {
+  shouldComponentUpdate() {
+    return false;
+  }
+  render() {
+    const { document } = this.props;
+    const simulatorProps = document.simulatorProps;
+    const Simulator = document.designer.simulatorComponent;
+    return (
+      <div
+        className={classNames('lc-document', {
+          'lc-document-hidden': document.suspensed,
+        })}
+      >
+        {/* 这一层将来做缩放用途 */}
+        <div className="lc-simulator-shell">
+          <Simulator {...simulatorProps} />
+        </div>
+        <DocumentInfoView document={document} />
+      </div>
+    );
+  }
+}
+
+class DocumentInfoView extends Component<{ document: DocumentModel }> {
+  render() {
+    return null;
+  }
+}
diff --git a/packages/designer/src/designer/document/node/component-config.ts b/packages/designer/src/designer/document/node/component-config.ts
new file mode 100644
index 000000000..a296f896d
--- /dev/null
+++ b/packages/designer/src/designer/document/node/component-config.ts
@@ -0,0 +1,380 @@
+import { ReactNode, ReactElement, ComponentType } from 'react';
+import Node, { NodeParent } from './node';
+import { NodeData, NodeSchema } from '../../schema';
+
+export type BasicTypes = 'array' | 'bool' | 'func' | 'number' | 'object' | 'string' | 'node' | 'element' | 'any';
+export interface CompositeType {
+  type: BasicTypes;
+  isRequired: boolean;
+}
+
+// TODO: add complex types
+
+export interface PropConfig {
+  name: string;
+  propType: BasicTypes | CompositeType;
+  description?: string;
+  defaultValue?: any;
+}
+
+export type CustomView = ReactElement | ComponentType<any>;
+
+export interface TipConfig {
+  className?: string;
+  children?: ReactNode;
+  theme?: string;
+  direction?: string; // 'n|s|w|e|top|bottom|left|right';
+}
+
+export interface IconConfig {
+  name: string;
+  size?: string;
+  className?: string;
+  effect?: string;
+}
+
+export interface TitleConfig {
+  label?: ReactNode;
+  tip?: string | ReactElement | TipConfig;
+  icon?: string | ReactElement | IconConfig;
+  className?: string;
+}
+
+export type Title = string | ReactElement | TitleConfig;
+
+export enum DisplayType {
+  Inline = 'inline',
+  Block = 'block',
+  Accordion = 'Accordion',
+  Plain = 'plain',
+  Caption = 'caption',
+}
+
+export interface SetterConfig {
+  /**
+   * if *string* passed must be a registered Setter Name
+   */
+  componentName: string | CustomView;
+  /**
+   * the props pass to Setter Component
+   */
+  props?: {
+    [prop: string]: any;
+  };
+}
+
+/**
+ * if *string* passed must be a registered Setter Name
+ */
+export type SetterType = SetterConfig | string | CustomView;
+
+export interface SettingFieldConfig {
+  /**
+   * the name of this setting field, which used in quickEditor
+   */
+  name: string;
+  /**
+   * the field body contains
+   */
+  setter: SetterType;
+  /**
+   * the prop target which to set, eg. "style.width"
+   * @default sameas .name
+   */
+  propTarget?: string;
+  /**
+   * the field title
+   * @default sameas .propTarget
+   */
+  title?: Title;
+  extraProps?: {
+    /**
+     * default value of target prop for setter use
+     */
+    defaultValue?: any;
+    onChange?: (value: any) => void;
+    getValue?: () => any;
+    /**
+     * the field conditional show, is not set always true
+     * @default undefined
+     */
+    condition?: (node: Node) => boolean;
+    /**
+     * quick add "required" validation
+     */
+    required?: boolean;
+    /**
+     * the field display
+     * @default DisplayType.Block
+     */
+    display?: DisplayType.Inline | DisplayType.Block | DisplayType.Accordion | DisplayType.Plain;
+    /**
+     * default collapsed when display accordion
+     */
+    defaultCollapsed?: boolean;
+    /**
+     * layout control
+     * number or [column number, left offset]
+     * @default 6
+     */
+    span?: number | [number, number];
+  };
+}
+
+export interface SettingGroupConfig {
+  /**
+   * the type "group"
+   */
+  type: 'group';
+  /**
+   * the name of this setting group, which used in quickEditor
+   */
+  name?: string;
+  /**
+   * the setting items which group body contains
+   */
+  items: Array<SettingFieldConfig | SettingGroupConfig | CustomView>;
+  /**
+   * the group title
+   * @default sameas .name
+   */
+  title?: Title;
+  extraProps: {
+    /**
+     * the field conditional show, is not set always true
+     * @default undefined
+     */
+    condition?: (node: Node) => boolean;
+    /**
+     * the group display
+     * @default DisplayType.Block
+     */
+    display?: DisplayType.Block | DisplayType.Accordion;
+    /**
+     * default collapsed when display accordion
+     */
+    defaultCollapsed?: boolean;
+    /**
+     * the gap between span
+     * @default 0 px
+     */
+    gap?: number;
+    /**
+     * layout control
+     * number or [column number, left offset]
+     * @default 6
+     */
+    span?: number | [number, number];
+  };
+}
+
+export type PropSettingConfig = SettingFieldConfig | SettingGroupConfig | CustomView;
+
+export interface NestingRule {
+  childWhitelist?: string[];
+  parentWhitelist?: string[];
+}
+
+export interface Configure {
+  props?: PropSettingConfig[];
+  styles?: object;
+  events?: object;
+  component?: {
+    isContainer?: boolean;
+    isModal?: boolean;
+    descriptor?: string;
+    nestingRule?: NestingRule;
+  };
+}
+
+export interface ComponentDescriptionSpec {
+  componentName: string;
+  /**
+   * unique id
+   */
+  uri?: string;
+  /**
+   * title or description
+   */
+  title?: string;
+  /**
+   * svg icon for component
+   */
+  icon?: string | ReactNode;
+  tags?: string[];
+  description?: string;
+  docUrl?: string;
+  screenshot?: string;
+  devMode?: 'procode' | 'lowcode';
+  npm?: {
+    package: string;
+    exportName: string;
+    subName: string;
+    main: string;
+    destructuring: boolean;
+    version: string;
+  };
+  props?: PropConfig[];
+  configure?: PropSettingConfig[] | Configure;
+}
+
+function ensureAList(list?: string | string[]): string[] | null {
+  if (!list) {
+    return null;
+  }
+  if (!Array.isArray(list)) {
+    list = list.split(/ *[ ,|] */).filter(Boolean);
+  }
+  if (list.length < 1) {
+    return null;
+  }
+  return list;
+}
+
+function npmToURI(npm: {
+  package: string;
+  exportName?: string;
+  subName?: string;
+  destructuring?: boolean;
+  main?: string;
+  version: string;
+}): string {
+  let pkg = [];
+  if (npm.package) {
+    pkg.push(npm.package);
+  }
+  if (npm.main) {
+    if (npm.main[0] === '/') {
+      pkg.push(npm.main.slice(1));
+    } else if (npm.main.slice(0, 2) === './') {
+      pkg.push(npm.main.slice(2));
+    } else {
+      pkg.push(npm.main);
+    }
+  }
+
+  let uri = pkg.join('/');
+  uri += `:${npm.destructuring && npm.exportName ? npm.exportName : 'default'}`;
+
+  if (npm.subName) {
+    uri += `.${npm.subName}`;
+  }
+
+  return uri;
+}
+
+function generatePropsConfigure(props: PropConfig[]) {
+  // todo:
+  return [];
+}
+
+export class ComponentConfig {
+  readonly isComponentConfig = true;
+  private _uri?: string;
+  get uri(): string {
+    return this._uri!;
+  }
+  private _componentName?: string;
+  get componentName(): string {
+    return this._componentName!;
+  }
+  private _isContainer?: boolean;
+  get isContainer(): boolean {
+    return this._isContainer!;
+  }
+  private _isModal?: boolean;
+  get isModal(): boolean {
+    return this._isModal!;
+  }
+  private _descriptor?: string;
+  get descriptor(): string {
+    return this._descriptor!;
+  }
+  private _acceptable?: boolean;
+  get acceptable(): boolean {
+    return this._acceptable!;
+  }
+  private _configure?: Configure;
+  get configure(): Configure {
+    return this._configure!;
+  }
+
+  private parentWhitelist?: string[] | null;
+  private childWhitelist?: string[] | null;
+
+  get title() {
+    return this._spec.title;
+  }
+
+  get icon() {
+    return this._spec.icon;
+  }
+
+  get propsConfigure() {
+    return this.configure.props;
+  }
+
+  constructor(private _spec: ComponentDescriptionSpec) {
+    this.parseSpec(_spec);
+  }
+
+  private parseSpec(spec: ComponentDescriptionSpec) {
+    const { componentName, uri, configure, npm, props } = spec;
+    this._uri = uri || (npm ? npmToURI(npm) : componentName);
+    this._componentName = componentName;
+    this._acceptable = false;
+
+    if (!configure || Array.isArray(configure)) {
+      this._configure = {
+        props: !configure ? [] : configure,
+        styles: {
+          supportClassName: true,
+          supportInlineStyle: true,
+        },
+      };
+    } else {
+      this._configure = configure;
+    }
+    if (!this.configure.props) {
+      this.configure.props = props ? generatePropsConfigure(props) : [];
+    }
+    const { component } = this.configure;
+    if (component) {
+      this._isContainer = component.isContainer ? true : false;
+      this._isModal = component.isModal ? true : false;
+      this._descriptor = component.descriptor;
+      if (component.nestingRule) {
+        const { parentWhitelist, childWhitelist } = component.nestingRule;
+        this.parentWhitelist = ensureAList(parentWhitelist);
+        this.childWhitelist = ensureAList(childWhitelist);
+      }
+    } else {
+      this._isContainer = false;
+      this._isModal = false;
+    }
+  }
+
+  set spec(spec: ComponentDescriptionSpec) {
+    this._spec = spec;
+    this.parseSpec(spec);
+  }
+
+  get spec(): ComponentDescriptionSpec {
+    return this._spec;
+  }
+
+
+  checkNestingUp(my: Node | NodeData, parent: NodeParent) {
+    if (this.parentWhitelist) {
+      return this.parentWhitelist.includes(parent.componentName);
+    }
+    return true;
+  }
+
+  checkNestingDown(my: Node, target: Node | NodeSchema) {
+    if (this.childWhitelist) {
+      return this.childWhitelist.includes(target.componentName);
+    }
+    return true;
+  }
+}
diff --git a/packages/designer/src/designer/document/node/node-children.ts b/packages/designer/src/designer/document/node/node-children.ts
new file mode 100644
index 000000000..58bff9747
--- /dev/null
+++ b/packages/designer/src/designer/document/node/node-children.ts
@@ -0,0 +1,186 @@
+import Node, { NodeParent } from './node';
+import { NodeData } from '../../schema';
+
+export default class NodeChildren {
+  private children: Node[];
+  constructor(readonly owner: NodeParent, childrenData: NodeData | NodeData[]) {
+    this.children = (Array.isArray(childrenData) ? childrenData : [childrenData]).map(child => {
+      const node = this.owner.document.createNode(child);
+      node.internalSetParent(this.owner);
+      return node;
+    });
+  }
+
+  /**
+   * 导出 schema
+   * @param serialize 序列化，加 id 标识符，用于储存为操作记录
+   */
+  exportSchema(serialize = false): NodeData[] {
+    return this.children.map(node => node.exportSchema(serialize));
+  }
+
+  /**
+   * 元素个数
+   */
+  get size(): number {
+    return this.children.length;
+  }
+
+  /**
+   * 是否空
+   */
+  isEmpty() {
+    return this.size < 1;
+  }
+
+  /*
+  // 用于数据重新灌入
+  merge() {
+    for (let i = 0, l = data.length; i < l; i++) {
+      const item = this.children[i];
+      if (item && isMergeable(item) && item.tagName === data[i].tagName) {
+        item.merge(data[i]);
+      } else {
+        if (item) {
+          item.purge();
+        }
+        this.children[i] = this.document.createNode(data[i]);
+        this.children[i].internalSetParent(this);
+      }
+    }
+    if (this.children.length > data.length) {
+      this.children.splice(data.length).forEach(child => child.purge());
+    }
+  }
+  */
+
+  /**
+   * 删除一个节点
+   */
+  delete(node: Node, purge: boolean = false): boolean {
+    const i = this.children.indexOf(node);
+    if (i < 0) {
+      return false;
+    }
+    const deleted = this.children.splice(i, 1)[0];
+    if (purge) {
+      // should set parent null
+      deleted.internalSetParent(null);
+      deleted.purge();
+    }
+    return false;
+  }
+
+  /**
+   * 插入一个节点，返回新长度
+   */
+  insert(node: Node, at?: number | null): void {
+    const children = this.children;
+    let index = at == null || at === -1 ? children.length : at;
+
+    const i = children.indexOf(node);
+
+    if (i < 0) {
+      if (index < children.length) {
+        children.splice(index, 0, node);
+      } else {
+        children.push(node);
+      }
+      node.internalSetParent(this.owner);
+    } else {
+      if (index > i) {
+        index -= 1;
+      }
+
+      if (index === i) {
+        return;
+      }
+
+      children.splice(i, 1);
+      children.splice(index, 0, node);
+    }
+
+    // check condition group
+    node.conditionGroup = null;
+    if (node.prevSibling && node.nextSibling) {
+      const conditionGroup = node.prevSibling.conditionGroup;
+      if (conditionGroup && conditionGroup === node.nextSibling.conditionGroup) {
+        node.conditionGroup = conditionGroup;
+      }
+    }
+  }
+
+  /**
+   * 取得节点索引编号
+   */
+  indexOf(node: Node): number {
+    return this.children.indexOf(node);
+  }
+
+  /**
+   * 根据索引获得节点
+   */
+  get(index: number): Node | null {
+    return this.children[index] || null;
+  }
+
+  /**
+   * 是否存在节点
+   */
+  has(node: Node) {
+    return this.indexOf(node) > -1;
+  }
+
+  /**
+   * 迭代器
+   */
+  [Symbol.iterator](): { next(): { value: Node } } {
+    let index = 0;
+    const children = this.children;
+    const length = children.length || 0;
+    return {
+      next() {
+        if (index < length) {
+          return {
+            value: children[index++],
+            done: false,
+          };
+        }
+        return {
+          value: undefined as any,
+          done: true,
+        };
+      },
+    };
+  }
+
+  /**
+   * 遍历
+   */
+  forEach(fn: (item: Node, index: number) => void): void {
+    this.children.forEach((child, index) => {
+      return fn(child, index);
+    });
+  }
+
+  /**
+   * 遍历
+   */
+  map<T>(fn: (item: Node, index: number) => T): T[] | null {
+    return this.children.map((child, index) => {
+      return fn(child, index);
+    });
+  }
+
+  private purged = false;
+  /**
+   * 回收销毁
+   */
+  purge() {
+    if (this.purged) {
+      return;
+    }
+    this.purged = true;
+    this.children.forEach(child => child.purge());
+  }
+}
diff --git a/packages/designer/src/designer/document/node/node-content.ts b/packages/designer/src/designer/document/node/node-content.ts
new file mode 100644
index 000000000..af146a15b
--- /dev/null
+++ b/packages/designer/src/designer/document/node/node-content.ts
@@ -0,0 +1,86 @@
+import { obx } from '@recore/obx';
+import { JSExpression, isJSExpression } from '../../schema';
+
+export default class NodeContent {
+  @obx.ref private _value: string | JSExpression = '';
+
+  get value(): string | JSExpression {
+    return this._value;
+  }
+
+  set value(val: string | JSExpression) {
+    this._value = val;
+  }
+
+  /**
+   * 获得表达式值
+   */
+  get code() {
+    if (isJSExpression(this._value)) {
+      return this._value.value;
+    }
+    return JSON.stringify(this.value);
+  }
+
+  /**
+   * 设置表达式值
+   */
+  set code(code: string) {
+    if (isJSExpression(this._value)) {
+      this._value = {
+        ...this._value,
+        value: code,
+      };
+    } else {
+      let useCode: boolean = true;
+      try {
+        const v = JSON.parse(code);
+        const t = typeof v;
+        if (v == null) {
+          this._value = '';
+          useCode = false;
+        } else if (t === 'string' || t === 'number' || t === 'boolean') {
+          this._value = String(v);
+          useCode = false;
+        }
+      } catch (e) {
+        // ignore
+      }
+      if (useCode) {
+        this._value = {
+          type: 'JSExpression',
+          value: code,
+          mock: this._value,
+        };
+      }
+    }
+  }
+
+  constructor(value: any) {
+    const type = typeof value;
+    if (value == null) {
+      this._value = '';
+    } else if (type === 'string' || type === 'number' || type === 'boolean') {
+      this._value = String(value);
+    } else if (isJSExpression(value)) {
+      this._value = value;
+    }
+  }
+
+  /**
+   * 是否表达式
+   */
+  isJSExpression(): boolean {
+    return isJSExpression(this._value);
+  }
+
+  /**
+   * 是否空值
+   */
+  isEmpty() {
+    if (isJSExpression(this._value)) {
+      return this._value.value === '';
+    }
+    return this._value === '';
+  }
+}
diff --git a/packages/designer/src/designer/document/node/node.ts b/packages/designer/src/designer/document/node/node.ts
new file mode 100644
index 000000000..e38eddcd6
--- /dev/null
+++ b/packages/designer/src/designer/document/node/node.ts
@@ -0,0 +1,481 @@
+import { obx } from '@recore/obx';
+import { NodeSchema, NodeData, PropsMap, PropsList } from '../../schema';
+import Props from './props/props';
+import DocumentModel from '../document-model';
+import NodeChildren from './node-children';
+import Prop from './props/prop';
+import NodeContent from './node-content';
+import { Component } from '../../simulator';
+import { ComponentConfig } from './component-config';
+
+const DIRECTIVES = ['condition', 'conditionGroup', 'loop', 'loopArgs', 'title', 'ignore', 'hidden', 'locked'];
+
+/**
+ * 基础节点
+ *
+ * [Node Properties]
+ *  componentName: Page/Block/Component
+ *  props
+ *  children
+ *
+ * [Directives]
+ *  loop
+ *  loopArgs
+ *  condition
+ *  ------- future support -----
+ *  conditionGroup
+ *  title
+ *  ignore
+ *  locked
+ *  hidden
+ */
+export default class Node {
+  /**
+   * 是节点实例
+   */
+  readonly isNode = true;
+
+  /**
+   * 节点 id
+   */
+  readonly id: string;
+
+  /**
+   * 节点组件类型
+   * 特殊节点:
+   *  * #text 文字节点
+   *  * #expression 表达式节点
+   *  * Page 页面
+   *  * Block/Fragment 区块
+   *  * Component 组件/元件
+   */
+  readonly componentName: string;
+  protected _props?: Props<Node>;
+  protected _directives?: Props<Node>;
+  protected _extras?: Props<Node>;
+  protected _children: NodeChildren | NodeContent;
+  private _parent: NodeParent | null = null;
+  private _zLevel = 0;
+  get props(): Props<Node> | undefined {
+    return this._props;
+  }
+  get directives(): Props<Node> | undefined {
+    return this._directives;
+  }
+  get extras(): Props<Node> | undefined {
+    return this._extras;
+  }
+  /**
+   * 父级节点
+   */
+  get parent(): NodeParent | null {
+    return this._parent;
+  }
+  /**
+   * 当前节点子集
+   */
+  get children(): NodeChildren | NodeContent {
+    return this._children;
+  }
+  /**
+   * 当前节点深度
+   */
+  get zLevel(): number {
+    return this._zLevel;
+  }
+
+  constructor(readonly document: DocumentModel, nodeSchema: NodeSchema) {
+    const { componentName, id, children, props, ...extras } = nodeSchema;
+    this.id = id || `node$${document.nextId()}`;
+    this.componentName = componentName;
+    if (this.isNodeParent) {
+      this._props = new Props(this, props);
+      this._directives = new Props(this, {});
+      Object.keys(extras).forEach(key => {
+        if (DIRECTIVES.indexOf(key) > -1) {
+          this.directives!.add((extras as any)[key], key);
+          delete (extras as any)[key];
+        }
+      });
+      this._extras = new Props(this, extras as any);
+      this._children = new NodeChildren(this as NodeParent, children || []);
+    } else {
+      this._children = new NodeContent(children);
+    }
+  }
+
+  /**
+   * 是否一个父亲类节点
+   */
+  get isNodeParent(): boolean {
+    return this.componentName.charAt(0) !== '#';
+  }
+
+  /**
+   * 内部方法，请勿使用
+   *
+   * @ignore
+   */
+  internalSetParent(parent: NodeParent | null) {
+    if (this._parent === parent) {
+      return;
+    }
+    if (this._parent) {
+      this._parent.children.delete(this);
+    }
+
+    this._parent = parent;
+    if (parent) {
+      this._zLevel = parent.zLevel + 1;
+    } else {
+      this._zLevel = -1;
+    }
+  }
+
+  /**
+   * 移除当前节点
+   */
+  remove() {
+    if (this.parent) {
+      this.parent.children.delete(this, true);
+    }
+  }
+
+  /**
+   * 选择当前节点
+   */
+  select() {
+    this.document.selection.select(this.id);
+  }
+
+  /**
+   * 节点组件类
+   */
+  @obx.ref get component(): Component {
+    return this.document.getComponent(this.componentName);
+  }
+
+  /**
+   * 节点组件描述
+   */
+  @obx.ref get componentConfig(): ComponentConfig {
+    return this.document.getComponentConfig(this.component, this.componentName);
+  }
+
+  @obx.ref get propsData(): PropsMap | PropsList | null {
+    if (!this.isNodeParent || this.componentName === 'Fragment') {
+      return null;
+    }
+    return this.props?.value || null;
+  }
+
+  get directivesData(): PropsMap | null {
+    if (!this.isNodeParent) {
+      return null;
+    }
+    return this.directives?.value as PropsMap || null;
+  }
+
+  private _conditionGroup: string | null = null;
+  /**
+   * 条件组
+   */
+  get conditionGroup(): string | null {
+    if (this._conditionGroup) {
+      return this._conditionGroup;
+    }
+    // 如果 condition 有值，且没有 group
+    if (this._condition) {
+      return this.id;
+    }
+    return null;
+  }
+  set conditionGroup(val) {
+    this._conditionGroup = val;
+  }
+
+  private _condition: any;
+  /**
+   *
+   */
+  get condition() {
+    if (this._condition == null) {
+      if (this._conditionGroup) {
+        // FIXME: should be expression
+        return true;
+      }
+      return null;
+    }
+    return this._condition;
+  }
+
+  wrapWith(schema: NodeSchema) {
+
+  }
+
+  replaceWith(schema: NodeSchema, migrate: boolean = true) {
+
+    //
+  }
+
+  /*
+  // TODO
+  // 外部修改，merge 进来，产生一次可恢复的历史数据
+  merge(data: ElementData) {
+    this.elementData = data;
+    const { leadingComments } = data;
+    this.leadingComments = leadingComments ? leadingComments.slice() : [];
+    this.parse();
+    this.mergeChildren(data.children || []);
+  }
+
+  // TODO: 再利用历史数据，不产生历史数据
+  reuse(timelineData: NodeSchema) {}
+  */
+
+  getProp(path: string, useStash: boolean = true): Prop | null {
+    return this.props?.query(path, useStash as any) || null;
+  }
+
+  getDirective(name: string, useStash: boolean = true): Prop | null {
+    return this.directives?.get(name, useStash as any) || null;
+  }
+
+  /**
+   * 获取节点在父容器中的索引
+   */
+  get index(): number {
+    if (!this.parent) {
+      return -1;
+    }
+    return this.parent.children.indexOf(this);
+  }
+
+  /**
+   * 获取下一个兄弟节点
+   */
+  get nextSibling(): Node | null {
+    if (!this.parent) {
+      return null;
+    }
+    const index = this.index;
+    if (index < 0) {
+      return null;
+    }
+    return this.parent.children.get(index + 1);
+  }
+
+  /**
+   * 获取上一个兄弟节点
+   */
+  get prevSibling(): Node | null {
+    if (!this.parent) {
+      return null;
+    }
+    const index = this.index;
+    if (index < 1) {
+      return null;
+    }
+    return this.parent.children.get(index - 1);
+  }
+
+  /**
+   * 获取符合搭建协议-节点 schema 结构
+   */
+  get schema(): NodeSchema {
+    // TODO: ..
+    return this.exportSchema(true);
+  }
+
+  /**
+   * 导出 schema
+   * @param serialize 序列化，加 id 标识符，用于储存为操作记录
+   */
+  exportSchema(serialize = false): NodeSchema {
+    // TODO...
+    const schema: any = {
+      componentName: this.componentName,
+      ...this.extras,
+      props: this.props,
+      ...this.directives,
+    };
+    if (serialize) {
+      schema.id = this.id;
+    }
+    if (isNodeParent(this)) {
+      if (this.children.size > 0) {
+        schema.children = this.children.exportSchema(serialize);
+      }
+    } else {
+      schema.children = (this.children as NodeContent).value;
+    }
+    return schema;
+  }
+
+  /**
+   * 判断是否包含特定节点
+   */
+  contains(node: Node): boolean {
+    return contains(this, node);
+  }
+
+  /**
+   * 获取特定深度的父亲节点
+   */
+  getZLevelTop(zLevel: number): Node | null {
+    return getZLevelTop(this, zLevel);
+  }
+
+  /**
+   * 判断与其它节点的位置关系
+   *
+   *  16 thisNode contains otherNode
+   *  8  thisNode contained_by otherNode
+   *  2  thisNode before or after otherNode
+   *  0  thisNode same as otherNode
+   */
+  comparePosition(otherNode: Node): number {
+    return comparePosition(this, otherNode);
+  }
+
+  private purged = false;
+  /**
+   * 是否已销毁
+   */
+  get isPurged() {
+    return this.purged;
+  }
+  /**
+   * 销毁
+   */
+  purge() {
+    if (this.purged) {
+      return;
+    }
+    if (this._parent) {
+      // should remove thisNode before purge
+      this.remove();
+      return;
+    }
+    this.purged = true;
+    if (isNodeParent(this)) {
+      this.children.purge();
+    }
+    this.props?.purge();
+    this.directives?.purge();
+    this.extras?.purge();
+    this.document.internalRemoveAndPurgeNode(this);
+  }
+}
+
+export interface NodeParent extends Node {
+  readonly children: NodeChildren;
+  readonly props: Props<Node>;
+  readonly directives: Props<Node>;
+  readonly extras: Props<Node>;
+}
+
+export function isNode(node: any): node is Node {
+  return node && node.isNode;
+}
+
+export function isNodeParent(node: Node): node is NodeParent {
+  return node.isNodeParent;
+}
+
+export function getZLevelTop(child: Node, zLevel: number): Node | null {
+  let l = child.zLevel;
+  if (l < zLevel || zLevel < 0) {
+    return null;
+  }
+  if (l === zLevel) {
+    return child;
+  }
+  let r: any = child;
+  while (r && l-- > zLevel) {
+    r = r.parent;
+  }
+  return r;
+}
+
+export function contains(node1: Node, node2: Node): boolean {
+  if (node1 === node2) {
+    return true;
+  }
+
+  if (!node1.isNodeParent || !node2.parent) {
+    return false;
+  }
+
+  const p = getZLevelTop(node2, node1.zLevel);
+  if (!p) {
+    return false;
+  }
+
+  return node1 === p;
+}
+
+// 16 node1 contains node2
+// 8  node1 contained_by node2
+// 2  node1 before or after node2
+// 0  node1 same as node2
+export function comparePosition(node1: Node, node2: Node): number {
+  if (node1 === node2) {
+    return 0;
+  }
+  const l1 = node1.zLevel;
+  const l2 = node2.zLevel;
+  if (l1 === l2) {
+    return 2;
+  }
+
+  let p: any;
+  if (l1 > l2) {
+    p = getZLevelTop(node2, l1);
+    if (p && p === node1) {
+      return 16;
+    }
+    return 2;
+  }
+
+  p = getZLevelTop(node1, l2);
+  if (p && p === node2) {
+    return 8;
+  }
+
+  return 2;
+}
+
+export function insertChild(container: NodeParent, thing: Node | NodeData, at?: number | null, copy?: boolean): Node {
+  let node: Node;
+  if (copy && isNode(thing)) {
+    thing = thing.schema;
+  }
+  if (isNode(thing)) {
+    node = thing;
+  } else {
+    node = container.document.createNode(thing);
+  }
+
+  container.children.insert(node, at);
+
+  return node;
+}
+
+export function insertChildren(
+  container: NodeParent,
+  nodes: Node[] | NodeData[],
+  at?: number | null,
+  copy?: boolean,
+): Node[] {
+  let index = at;
+  let node: any;
+  const results: Node[] = [];
+  // tslint:disable-next-line
+  while ((node = nodes.pop())) {
+    results.push(insertChild(container, node, index, copy));
+    index = node.index;
+  }
+  return results;
+}
+
diff --git a/packages/designer/src/designer/document/node/props/prop.ts b/packages/designer/src/designer/document/node/props/prop.ts
new file mode 100644
index 000000000..9986884d7
--- /dev/null
+++ b/packages/designer/src/designer/document/node/props/prop.ts
@@ -0,0 +1,453 @@
+import { untracked, computed, obx } from '@recore/obx';
+import { valueToSource } from '../../../../utils/value-to-source';
+import { CompositeValue, isJSExpression } from '../../../schema';
+import StashSpace from './stash-space';
+import { uniqueId } from '../../../../utils/unique-id';
+import { isPlainObject } from '../../../../utils/is-plain-object';
+import { hasOwnProperty } from '../../../../utils/has-own-property';
+
+export const UNSET = Symbol.for('unset');
+export type UNSET = typeof UNSET;
+
+export interface IPropParent {
+  delete(prop: Prop): void;
+}
+
+export default class Prop implements IPropParent {
+  readonly isProp = true;
+
+  readonly id = uniqueId('prop$');
+
+  private _type: 'unset' | 'literal' | 'map' | 'list' | 'expression' = 'unset';
+  /**
+   * 属性类型
+   */
+  get type(): 'unset' | 'literal' | 'map' | 'list' | 'expression' {
+    return this._type;
+  }
+
+  @obx.ref private _value: any = UNSET;
+
+  /**
+   * 属性值
+   */
+  @computed get value(): CompositeValue {
+    if (this._type === 'unset') {
+      return null;
+    }
+
+    const type = this._type;
+    if (type === 'literal' || type === 'expression') {
+      return this._value;
+    }
+
+    if (type === 'map') {
+      if (!this._items) {
+        return this._value;
+      }
+      const maps: any = {};
+      this.items!.forEach((prop, key) => {
+        maps[key] = prop.value;
+      });
+      return maps;
+    }
+
+    if (type === 'list') {
+      if (!this._items) {
+        return this._items;
+      }
+      return this.items!.map(prop => prop.value);
+    }
+
+    return null;
+  }
+
+  /**
+   * set value, val should be JSON Object
+   */
+  set value(val: CompositeValue) {
+    this._value = val;
+    const t = typeof val;
+    if (val == null) {
+      this._value = null;
+      this._type = 'literal';
+    } else if (t === 'string' || t === 'number' || t === 'boolean') {
+      this._value = val;
+      this._type = 'literal';
+    } else if (Array.isArray(val)) {
+      this._type = 'list';
+    } else if (isPlainObject(val)) {
+      if (isJSExpression(val)) {
+        this._type = 'expression';
+      } else {
+        this._type = 'map';
+      }
+      this._type = 'map';
+    } else {
+      this._type = 'expression';
+      this._value = {
+        type: 'JSExpression',
+        value: valueToSource(val),
+      };
+    }
+    if (untracked(() => this._items)) {
+      this._items!.forEach(prop => prop.purge());
+      this._items = null;
+    }
+    this._maps = null;
+    if (this.stash) {
+      this.stash.clear();
+    }
+  }
+
+  /**
+   * 取消设置值
+   */
+  unset() {
+    this._type = 'unset';
+  }
+
+  /**
+   * 是否未设置值
+   */
+  isUnset() {
+    return this._type === 'unset';
+  }
+
+  /**
+   * 值是否包含表达式
+   * 包含 JSExpresion | JSSlot 等值
+   */
+  isContainJSExpression(): boolean {
+    const type = this._type;
+    if (type === 'expression') {
+      return true;
+    }
+    if (type === 'literal' || type === 'unset') {
+      return false;
+    }
+    if ((type === 'list' || type === 'map') && this.items) {
+      return this.items.some(item => item.isContainJSExpression());
+    }
+    return false;
+  }
+
+  /**
+   * 是否简单 JSON 数据
+   */
+  isJSON() {
+    return !this.isContainJSExpression();
+  }
+
+  private _items: Prop[] | null = null;
+  private _maps: Map<string, Prop> | null = null;
+  @computed private get items(): Prop[] | null {
+    let _items: any;
+    untracked(() => {
+      _items = this._items;
+    });
+    if (!_items) {
+      if (this._type === 'list') {
+        const data = this._value;
+        const items = [];
+        for (const item of data) {
+          items.push(new Prop(this, item));
+        }
+        _items = items;
+        this._maps = null;
+      } else if (this._type === 'map') {
+        const data = this._value;
+        const items = [];
+        const maps = new Map<string, Prop>();
+        const keys = Object.keys(data);
+        for (const key of keys) {
+          const prop = new Prop(this, data[key], key);
+          items.push(prop);
+          maps.set(key, prop);
+        }
+        _items = items;
+        this._maps = maps;
+      } else {
+        _items = null;
+        this._maps = null;
+      }
+      this._items = _items;
+    }
+    return _items;
+  }
+  @computed private get maps(): Map<string, Prop> | null {
+    if (!this.items || this.items.length < 1) {
+      return null;
+    }
+    return this._maps;
+  }
+
+  private stash: StashSpace | undefined;
+
+  /**
+   * 键值
+   */
+  @obx key: string | number | undefined;
+  /**
+   * 扩展值
+   */
+  @obx spread: boolean;
+
+  constructor(
+    public parent: IPropParent,
+    value: CompositeValue | UNSET = UNSET,
+    key?: string | number,
+    spread = false,
+  ) {
+    if (value !== UNSET) {
+      this.value = value;
+    }
+    this.key = key;
+    this.spread = spread;
+  }
+
+  /**
+   * 获取某个属性
+   * @param stash 强制
+   */
+  get(path: string, stash: false): Prop | null;
+  /**
+   * 获取某个属性, 如果不存在，临时获取一个待写入
+   * @param stash 强制
+   */
+  get(path: string, stash: true): Prop;
+  /**
+   * 获取某个属性, 如果不存在，临时获取一个待写入
+   */
+  get(path: string): Prop;
+  get(path: string, stash = true) {
+    const type = this._type;
+    if (type !== 'map' && type !== 'unset' && !stash) {
+      return null;
+    }
+
+    const maps = type === 'map' ? this.maps : null;
+
+    let prop: any = maps ? maps.get(path) : null;
+
+    if (prop) {
+      return prop;
+    }
+
+    const i = path.indexOf('.');
+    let entry = path;
+    let nest = '';
+    if (i > 0) {
+      nest = path.slice(i + 1);
+      if (nest) {
+        entry = path.slice(0, i);
+        prop = maps ? maps.get(entry) : null;
+        if (prop) {
+          return prop.get(nest, stash);
+        }
+      }
+    }
+
+    if (stash) {
+      if (!this.stash) {
+        this.stash = new StashSpace(
+          item => {
+            // item take effect
+            this.set(String(item.key), item);
+            item.parent = this;
+          },
+          () => {
+            return true;
+          },
+        );
+      }
+      prop = this.stash.get(entry);
+      if (nest) {
+        return prop.get(nest, true);
+      }
+
+      return prop;
+    }
+
+    return null;
+  }
+
+  /**
+   * 从父级移除本身
+   */
+  remove() {
+    this.parent.delete(this);
+  }
+
+  /**
+   * 删除项
+   */
+  delete(prop: Prop): void {
+    if (this.items) {
+      const i = this.items.indexOf(prop);
+      if (i > -1) {
+        this.items.slice(i, 1);
+        prop.purge();
+      }
+      if (this._maps && prop.key) {
+        this._maps.delete(String(prop.key));
+      }
+    }
+  }
+
+  /**
+   * 删除 key
+   */
+  deleteKey(key: string): void {
+    if (this.maps) {
+      const prop = this.maps.get(key);
+      if (prop) {
+        this.delete(prop);
+      }
+    }
+  }
+
+  /**
+   * 元素个数
+   */
+  size(): number {
+    return this.items?.length || 0;
+  }
+
+  /**
+   * 添加值到列表
+   *
+   * @param force 强制
+   */
+  add(value: CompositeValue, force = false): Prop | null {
+    const type = this._type;
+    if (type !== 'list' && type !== 'unset' && !force) {
+      return null;
+    }
+    if (type === 'unset' || (force && type !== 'list')) {
+      this.value = [];
+    }
+    const prop = new Prop(this, value);
+    this.items!.push(prop);
+    return prop;
+  }
+
+  /**
+   * 设置值到字典
+   *
+   * @param force 强制
+   */
+  set(key: string, value: CompositeValue | Prop, force = false) {
+    const type = this._type;
+    if (type !== 'map' && type !== 'unset' && !force) {
+      return null;
+    }
+    if (type === 'unset' || (force && type !== 'map')) {
+      this.value = {};
+    }
+    const prop = isProp(value) ? value : new Prop(this, value, key);
+    const items = this.items!;
+    const maps = this.maps!;
+    const orig = maps.get(key);
+    if (orig) {
+      // replace
+      const i = items.indexOf(orig);
+      if (i > -1) {
+        items.splice(i, 1, prop)[0].purge();
+      }
+      maps.set(key, prop);
+    } else {
+      // push
+      items.push(prop);
+      maps.set(key, prop);
+    }
+
+    return prop;
+  }
+
+  /**
+   * 是否存在 key
+   */
+  has(key: string): boolean {
+    if (this._type !== 'map') {
+      return false;
+    }
+    if (this._maps) {
+      return this._maps.has(key);
+    }
+    return hasOwnProperty(this._value, key);
+  }
+
+  private purged = false;
+  /**
+   * 回收销毁
+   */
+  purge() {
+    if (this.purged) {
+      return;
+    }
+    this.purged = true;
+    if (this.stash) {
+      this.stash.purge();
+    }
+    if (this._items) {
+      this._items.forEach(item => item.purge());
+    }
+    this._maps = null;
+  }
+
+  /**
+   * 迭代器
+   */
+  [Symbol.iterator](): { next(): { value: Prop } } {
+    let index = 0;
+    const items = this.items;
+    const length = items?.length || 0;
+    return {
+      next() {
+        if (index < length) {
+          return {
+            value: items![index++],
+            done: false,
+          };
+        }
+        return {
+          value: undefined as any,
+          done: true,
+        };
+      },
+    };
+  }
+
+  /**
+   * 遍历
+   */
+  forEach(fn: (item: Prop, key: number | string | undefined) => void): void {
+    const items = this.items;
+    if (!items) {
+      return;
+    }
+    const isMap = this._type === 'map';
+    items.forEach((item, index) => {
+      return isMap ? fn(item, item.key) : fn(item, index);
+    });
+  }
+
+  /**
+   * 遍历
+   */
+  map<T>(fn: (item: Prop, key: number | string | undefined) => T): T[] | null {
+    const items = this.items;
+    if (!items) {
+      return null;
+    }
+    const isMap = this._type === 'map';
+    return items.map((item, index) => {
+      return isMap ? fn(item, item.key) : fn(item, index);
+    });
+  }
+}
+
+export function isProp(obj: any): obj is Prop {
+  return obj && obj.isProp;
+}
diff --git a/packages/designer/src/designer/document/node/props/props.ts b/packages/designer/src/designer/document/node/props/props.ts
new file mode 100644
index 000000000..d0d0691d6
--- /dev/null
+++ b/packages/designer/src/designer/document/node/props/props.ts
@@ -0,0 +1,242 @@
+import { computed, obx } from '@recore/obx';
+import { uniqueId } from '../../../../utils/unique-id';
+import { CompositeValue, PropsList, PropsMap } from '../../../schema';
+import StashSpace from './stash-space';
+import Prop, { IPropParent } from './prop';
+
+export const UNSET = Symbol.for('unset');
+export type UNSET = typeof UNSET;
+
+
+export default class Props<O = any> implements IPropParent {
+  readonly id = uniqueId('props');
+  @obx.val private items: Prop[] = [];
+  @obx.ref private get maps(): Map<string, Prop> {
+    const maps = new Map();
+    if (this.items.length > 0) {
+      this.items.forEach(prop => {
+        if (prop.key) {
+          maps.set(prop.key, prop);
+        }
+      });
+    }
+    return maps;
+  }
+
+  private stash = new StashSpace(
+    prop => {
+      this.items.push(prop);
+      prop.parent = this;
+    },
+    () => {
+      return true;
+    },
+  );
+
+  /**
+   * 元素个数
+   */
+  get size() {
+    return this.items.length;
+  }
+
+  @computed get value(): PropsMap | PropsList | null {
+    if (this.items.length < 1) {
+      return null;
+    }
+    if (this.type === 'list') {
+      return this.items.map(item => ({
+        spread: item.spread,
+        name: item.key as string,
+        value: item.value,
+      }));
+    }
+    const maps: any = {};
+    this.items.forEach(prop => {
+      if (prop.key) {
+        maps[prop.key] = prop.value;
+      }
+    });
+    return maps;
+  }
+
+  @obx type: 'map' | 'list' = 'map';
+
+  constructor(readonly owner: O, value?: PropsMap | PropsList | null) {
+    if (Array.isArray(value)) {
+      this.type = 'list';
+      value.forEach(item => {});
+    } else if (value != null) {
+      this.type = 'map';
+    }
+  }
+
+  /**
+   * 根据 path 路径查询属性，如果没有则临时生成一个
+   */
+  query(path: string): Prop;
+  /**
+   * 根据 path 路径查询属性
+   *
+   * @useStash 如果没有则临时生成一个
+   */
+  query(path: string, useStash: true): Prop;
+  /**
+   * 根据 path 路径查询属性
+   */
+  query(path: string, useStash: false): Prop | null;
+  /**
+   * 根据 path 路径查询属性
+   *
+   * @useStash 如果没有则临时生成一个
+   */
+  query(path: string, useStash: boolean = true) {
+    let matchedLength = 0;
+    let firstMatched = null;
+    if (this.items) {
+      // target: a.b.c
+      // trys: a.b.c, a.b, a
+      let i = this.items.length;
+      while (i-- > 0) {
+        const expr = this.items[i];
+        if (!expr.key) {
+          continue;
+        }
+        const name = String(expr.key);
+        if (name === path) {
+          // completely match
+          return expr;
+        }
+
+        // fisrt match
+        const l = name.length;
+        if (path.slice(0, l + 1) === `${name}.`) {
+          matchedLength = l;
+          firstMatched = expr;
+        }
+      }
+    }
+
+    let ret = null;
+    if (firstMatched) {
+      ret = firstMatched.get(path.slice(matchedLength + 1), true);
+    }
+    if (!ret && useStash) {
+      return this.stash.get(path);
+    }
+
+    return ret;
+  }
+
+  /**
+   * 获取某个属性, 如果不存在，临时获取一个待写入
+   * @param useStash 强制
+   */
+  get(path: string, useStash: true): Prop;
+  /**
+   * 获取某个属性
+   * @param useStash 强制
+   */
+  get(path: string, useStash: false): Prop | null;
+  /**
+   * 获取某个属性
+   */
+  get(path: string): Prop | null;
+  get(name: string, useStash = false) {
+    return this.maps.get(name) || (useStash && this.stash.get(name)) || null;
+  }
+
+  /**
+   * 删除项
+   */
+  delete(prop: Prop): void {
+    const i = this.items.indexOf(prop);
+    if (i > -1) {
+      this.items.splice(i, 1);
+      prop.purge();
+    }
+  }
+
+  /**
+   * 删除 key
+   */
+  deleteKey(key: string): void {
+    this.items = this.items.filter(item => {
+      if (item.key === key) {
+        item.purge();
+        return false;
+      }
+      return true;
+    });
+  }
+
+  /**
+   * 添加值
+   */
+  add(value: CompositeValue | null, key?: string | number, spread = false): Prop {
+    const prop = new Prop(this, value, key, spread);
+    this.items.push(prop);
+    return prop;
+  }
+
+  /**
+   * 是否存在 key
+   */
+  has(key: string): boolean {
+    return this.maps.has(key);
+  }
+
+  /**
+   * 迭代器
+   */
+  [Symbol.iterator](): { next(): { value: Prop } } {
+    let index = 0;
+    const items = this.items;
+    const length = items.length || 0;
+    return {
+      next() {
+        if (index < length) {
+          return {
+            value: items[index++],
+            done: false,
+          };
+        }
+        return {
+          value: undefined as any,
+          done: true,
+        };
+      },
+    };
+  }
+
+  /**
+   * 遍历
+   */
+  forEach(fn: (item: Prop, key: number | string | undefined) => void): void {
+    this.items.forEach(item => {
+      return fn(item, item.key);
+    });
+  }
+
+  /**
+   * 遍历
+   */
+  map<T>(fn: (item: Prop, key: number | string | undefined) => T): T[] | null {
+    return this.items.map(item => {
+      return fn(item, item.key);
+    });
+  }
+
+  private purged = false;
+  /**
+   * 回收销毁
+   */
+  purge() {
+    if (this.purged) {
+      return;
+    }
+    this.purged = true;
+    this.stash.purge();
+    this.items.forEach(item => item.purge());
+  }
+}
diff --git a/packages/designer/src/designer/document/node/props/stash-space.ts b/packages/designer/src/designer/document/node/props/stash-space.ts
new file mode 100644
index 000000000..14cb36e18
--- /dev/null
+++ b/packages/designer/src/designer/document/node/props/stash-space.ts
@@ -0,0 +1,65 @@
+import { obx, autorun, untracked } from '@recore/obx';
+import Prop, { IPropParent } from './prop';
+
+export type PendingItem = Prop[];
+export default class StashSpace implements IPropParent {
+  @obx.val private space: Set<Prop> = new Set();
+  @obx.ref private get maps(): Map<string, Prop> {
+    const maps = new Map();
+    if (this.space.size > 0) {
+      this.space.forEach(prop => {
+        maps.set(prop.key, prop);
+      });
+    }
+    return maps;
+  }
+  private willPurge: () => void;
+
+  constructor(write: (item: Prop) => void, before: () => boolean) {
+    this.willPurge = autorun(() => {
+      if (this.space.size < 1) {
+        return;
+      }
+      const pending: Prop[] = [];
+      for (const prop of this.space) {
+        if (!prop.isUnset()) {
+          this.space.delete(prop);
+          pending.push(prop);
+        }
+      }
+      if (pending.length > 0) {
+        untracked(() => {
+          if (before()) {
+            for (const item of pending) {
+              write(item);
+            }
+          }
+        });
+      }
+    });
+  }
+
+  get(key: string): Prop {
+    let prop = this.maps.get(key);
+    if (!prop) {
+      prop = new Prop(this, null, key);
+      this.space.add(prop);
+    }
+    return prop;
+  }
+
+  delete(prop: Prop) {
+    this.space.delete(prop);
+    prop.purge();
+  }
+
+  clear() {
+    this.space.forEach(item => item.purge());
+    this.space.clear();
+  }
+
+  purge() {
+    this.willPurge();
+    this.space.clear();
+  }
+}
diff --git a/packages/designer/src/designer/document/node/root-node.ts b/packages/designer/src/designer/document/node/root-node.ts
new file mode 100644
index 000000000..5a65b8711
--- /dev/null
+++ b/packages/designer/src/designer/document/node/root-node.ts
@@ -0,0 +1,77 @@
+import Node, { NodeParent } from './node';
+import { RootSchema } from '../../schema';
+import DocumentModel from '../document-model';
+import NodeChildren from './node-children';
+import Props from './props/props';
+
+/**
+ * 根容器节点
+ *
+ * [Node Properties]
+ *  componentName: Page/Block/Component
+ *  props
+ *  children
+ *
+ * [Root Container Extra Properties]
+ *  fileName
+ *  meta
+ *  state
+ *  defaultProps
+ *  lifeCycles
+ *  methods
+ *  dataSource
+ *  css
+ *
+ * [Directives **not used**]
+ *  loop
+ *  loopArgs
+ *  condition
+ *  ------- future support -----
+ *  conditionGroup
+ *  title
+ *  ignore
+ *  locked
+ *  hidden
+ */
+export default class RootNode extends Node implements NodeParent {
+  readonly isRootNode = true;
+  readonly isNodeParent = true;
+  readonly index = 0;
+  readonly nextSibling = null;
+  readonly prevSibling = null;
+  readonly zLevel = 0;
+  readonly parent = null;
+  get children(): NodeChildren {
+    return this._children as NodeChildren;
+  }
+  get props(): Props<RootNode> {
+    return this._props as any;
+  }
+  get extras(): Props<RootNode> {
+    return this._extras as any;
+  }
+  get directives(): Props<RootNode> {
+    return this._props as any;
+  }
+  internalSetParent(parent: null) {}
+
+  constructor(readonly document: DocumentModel, rootSchema: RootSchema) {
+    super(document, rootSchema);
+  }
+
+  isPage() {
+    return this.componentName === 'Page';
+  }
+
+  isComponent() {
+    return this.componentName === 'Component';
+  }
+
+  isBlock() {
+    return this.componentName === 'Block';
+  }
+}
+
+export function isRootNode(node: any): node is RootNode {
+  return node && node.isRootNode;
+}
diff --git a/packages/designer/src/designer/dragon.ts b/packages/designer/src/designer/dragon.ts
index f1b0a5328..2aaca11d2 100644
--- a/packages/designer/src/designer/dragon.ts
+++ b/packages/designer/src/designer/dragon.ts
@@ -168,17 +168,14 @@ export default class Dragon {
   }
 
   getMasterSensors(): ISimulator[] {
-    return this.designer.project.documents.map(doc => (doc.actived && doc.simulator) || null).filter(Boolean);
-  }
-
-  get master(): DocumentModel {
-
+    return this.designer.project.documents.map(doc => (doc.actived && doc.simulator) || null).filter(Boolean) as any;
   }
 
   /**
    * dragTarget should be a INode | INode[] | NodeData | NodeData[]
    */
   boost(dragObject: DragObject, boostEvent: MouseEvent) {
+    /*
     const doc = document;
     const fromTop = isFromTopDocument(boostEvent);
     let lastLocation: any = null;
@@ -368,6 +365,7 @@ export default class Dragon {
         topDoc.addEventListener('keyup', checkcopy as any, false);
       }
     }
+    */
   }
 
   addSensor(sensor: any) {
diff --git a/packages/designer/src/designer/history.ts b/packages/designer/src/designer/history.ts
new file mode 100644
index 000000000..65b3dba38
--- /dev/null
+++ b/packages/designer/src/designer/history.ts
@@ -0,0 +1 @@
+// todo
diff --git a/packages/designer/src/designer/hovering.ts b/packages/designer/src/designer/hovering.ts
new file mode 100644
index 000000000..641b8e3a7
--- /dev/null
+++ b/packages/designer/src/designer/hovering.ts
@@ -0,0 +1,34 @@
+import { obx } from '@recore/obx';
+import Node from './document/node/node';
+import DocumentModel from './document/document-model';
+
+export default class Hovering {
+  @obx.ref private _enable: boolean = true;
+  get enable() {
+    return this._enable;
+  }
+  set enable(flag: boolean) {
+    this._enable = flag;
+    if (!flag) {
+      this._hovering = null;
+    }
+  }
+  @obx.ref xRayMode: boolean = false;
+
+  @obx.ref private _hovering: Node | null = null;
+  get hovering() {
+    return this._hovering;
+  }
+
+  @obx.ref event?: MouseEvent;
+  hover(node: Node | null, e: MouseEvent) {
+    this._hovering = node;
+    this.event = e;
+  }
+
+  leave(document: DocumentModel) {
+    if (this.hovering && this.hovering.document === document) {
+      this._hovering = null;
+    }
+  }
+}
diff --git a/packages/designer/src/designer/index.ts b/packages/designer/src/designer/index.ts
index e69de29bb..748611c59 100644
--- a/packages/designer/src/designer/index.ts
+++ b/packages/designer/src/designer/index.ts
@@ -0,0 +1,3 @@
+import DesignerView from './designer-view';
+
+export default DesignerView;
diff --git a/packages/designer/src/designer/location.ts b/packages/designer/src/designer/location.ts
new file mode 100644
index 000000000..121200a03
--- /dev/null
+++ b/packages/designer/src/designer/location.ts
@@ -0,0 +1,126 @@
+import ComponentNode, { NodeParent } from './document/node/node';
+import DocumentModel from './document/document-model';
+
+export interface LocationData {
+  target: NodeParent; // shadowNode | ConditionFlow | ElementNode | RootNode
+  detail: LocationDetail;
+}
+
+export enum LocationDetailType {
+  Children = 'Children',
+  Prop = 'Prop',
+}
+
+export interface LocationChildrenDetail {
+  type: LocationDetailType.Children;
+  index: number;
+  near?: {
+    node: ComponentNode;
+    pos: 'before' | 'after';
+    rect?: Rect;
+    align?: 'V' | 'H';
+  };
+}
+
+export interface LocationPropDetail {
+  // cover 形态，高亮 domNode，如果 domNode 为空，取 container 的值
+  type: LocationDetailType.Prop;
+  name: string;
+  domNode?: HTMLElement;
+}
+
+export type LocationDetail = LocationChildrenDetail | LocationPropDetail | { type: string; [key: string]: any };
+
+export interface Point {
+  clientX: number;
+  clientY: number;
+}
+
+export type Rects = Array<ClientRect | DOMRect> & {
+  elements: Array<Element | Text>;
+};
+
+export type Rect = (ClientRect | DOMRect) & {
+  elements: Array<Element | Text>;
+  computed?: boolean;
+};
+
+export function isLocationData(obj: any): obj is LocationData {
+  return obj && obj.target && obj.detail;
+}
+
+export function isLocationChildrenDetail(obj: any): obj is LocationChildrenDetail {
+  return obj && obj.type === LocationDetailType.Children;
+}
+
+export function isRowContainer(container: Element | Text, win?: Window) {
+  if (isText(container)) {
+    return true;
+  }
+  const style = (win || getWindow(container)).getComputedStyle(container);
+  const display = style.getPropertyValue('display');
+  if (/flex$/.test(display)) {
+    const direction = style.getPropertyValue('flex-direction') || 'row';
+    if (direction === 'row' || direction === 'row-reverse') {
+      return true;
+    }
+  }
+  return false;
+}
+
+export function isChildInline(child: Element | Text, win?: Window) {
+  if (isText(child)) {
+    return true;
+  }
+  const style = (win || getWindow(child)).getComputedStyle(child);
+  return /^inline/.test(style.getPropertyValue('display'));
+}
+
+export function getRectTarget(rect: Rect | null) {
+  if (!rect || rect.computed) {
+    return null;
+  }
+  const els = rect.elements;
+  return els && els.length > 0 ? els[0]! : null;
+}
+
+export function isVerticalContainer(rect: Rect | null) {
+  const el = getRectTarget(rect);
+  if (!el) {
+    return false;
+  }
+  return isRowContainer(el);
+}
+
+export function isVertical(rect: Rect | null) {
+  const el = getRectTarget(rect);
+  if (!el) {
+    return false;
+  }
+  return isChildInline(el) || (el.parentElement ? isRowContainer(el.parentElement) : false);
+}
+
+function isText(elem: any): elem is Text {
+  return elem.nodeType === Node.TEXT_NODE;
+}
+
+function isDocument(elem: any): elem is Document {
+  return elem.nodeType === Node.DOCUMENT_NODE;
+}
+
+export function getWindow(elem: Element | Document): Window {
+  return (isDocument(elem) ? elem : elem.ownerDocument!).defaultView!;
+}
+
+export default class Location {
+  readonly target: NodeParent;
+  readonly detail: LocationDetail;
+  get document(): DocumentModel {
+    return this.target.document;
+  }
+
+  constructor({ target, detail }: LocationData) {
+    this.target = target;
+    this.detail = detail;
+  }
+}
diff --git a/packages/designer/src/designer/project-view.tsx b/packages/designer/src/designer/project-view.tsx
new file mode 100644
index 000000000..406563b8a
--- /dev/null
+++ b/packages/designer/src/designer/project-view.tsx
@@ -0,0 +1,22 @@
+import { Component } from 'react';
+import { observer } from '@recore/core-obx';
+import Designer from './designer';
+import DocumentView from './document/document-view';
+
+@observer
+export default class ProjectView extends Component<{ designer: Designer }> {
+  render() {
+    const { designer } = this.props;
+    // TODO: support splitview
+    return (
+      <div className="lc-project">
+        {designer.project.documents.map(doc => {
+          if (!doc.opened) {
+            return null;
+          }
+          return <DocumentView key={doc.id} document={doc} />;
+        })}
+      </div>
+    );
+  }
+}
diff --git a/packages/designer/src/designer/schema.ts b/packages/designer/src/designer/schema.ts
index f027c66b4..cb2d4eb91 100644
--- a/packages/designer/src/designer/schema.ts
+++ b/packages/designer/src/designer/schema.ts
@@ -31,7 +31,7 @@ export interface CompositeObject {
 }
 
 export interface NpmInfo {
-  componentName: string;
+  componentName?: string;
   package: string;
   version: string;
   destructuring?: boolean;
diff --git a/packages/designer/src/designer/scroller.ts b/packages/designer/src/designer/scroller.ts
new file mode 100644
index 000000000..cba629927
--- /dev/null
+++ b/packages/designer/src/designer/scroller.ts
@@ -0,0 +1,181 @@
+import { isElement } from '../utils/dom';
+
+export class ScrollTarget {
+  get left() {
+    return 'scrollX' in this.target ? this.target.scrollX : this.target.scrollLeft;
+  }
+  get top() {
+    return 'scrollY' in this.target ? this.target.scrollY : this.target.scrollTop;
+  }
+  scrollTo(options: { left?: number; top?: number }) {
+    this.target.scrollTo(options);
+  }
+
+  scrollToXY(x: number, y: number) {
+    this.target.scrollTo(x, y);
+  }
+
+  get scrollHeight(): number {
+    return ((this.doe || this.target) as any).scrollHeight;
+  }
+
+  get scrollWidth(): number {
+    return ((this.doe || this.target) as any).scrollWidth;
+  }
+
+  private doe?: HTMLElement;
+  constructor(private target: Window | Element) {
+    if (isWindow(target)) {
+      this.doe = target.document.documentElement;
+    }
+  }
+}
+
+function isWindow(obj: any): obj is Window {
+  return obj && obj.document;
+}
+
+function easing(n: number) {
+  return Math.sin((n * Math.PI) / 2);
+}
+
+const SCROLL_ACCURCY = 30;
+
+export interface IScrollable {
+  scrollTarget?: ScrollTarget | Element;
+  bounds: DOMRect;
+  scale: number;
+}
+
+export default class Scroller {
+  private pid: number | undefined;
+
+  get scrollTarget(): ScrollTarget | null {
+    let target = this.scrollable.scrollTarget;
+    if (!target) {
+      return null;
+    }
+    if (isElement(target)) {
+      target = new ScrollTarget(target);
+      this.scrollable.scrollTarget = target;
+    }
+    return target;
+  }
+
+  constructor(private scrollable: IScrollable) {
+  }
+
+  scrollTo(options: { left?: number; top?: number }) {
+    this.cancel();
+
+    const scrollTarget = this.scrollTarget;
+    if (!scrollTarget) {
+      return;
+    }
+
+    let pid: number;
+    const left = scrollTarget.left;
+    const top = scrollTarget.top;
+    const end = () => {
+      this.cancel();
+    };
+
+    if ((left === options.left || options.left == null) && top === options.top) {
+      end();
+      return;
+    }
+
+    const duration = 200;
+    const start = +new Date();
+
+    const animate = () => {
+      if (pid !== this.pid) {
+        return;
+      }
+
+      const now = +new Date();
+      const time = Math.min(1, (now - start) / duration);
+      const eased = easing(time);
+      const opt: any = {};
+      if (options.left != null) {
+        opt.left = eased * (options.left - left) + left;
+      }
+      if (options.top != null) {
+        opt.top = eased * (options.top - top) + top;
+      }
+
+      scrollTarget.scrollTo(opt);
+
+      if (time < 1) {
+        this.pid = pid = requestAnimationFrame(animate);
+      } else {
+        end();
+      }
+    };
+
+    this.pid = pid = requestAnimationFrame(animate);
+  }
+
+  scrolling(point: { globalX: number; globalY: number }) {
+    this.cancel();
+
+    const { bounds, scale } = this.scrollable;
+    const scrollTarget = this.scrollTarget;
+    if (!scrollTarget) {
+      return;
+    }
+
+    const x = point.globalX;
+    const y = point.globalY;
+
+    const maxScrollHeight = scrollTarget.scrollHeight - bounds.height / scale;
+    const maxScrollWidth = scrollTarget.scrollWidth - bounds.width / scale;
+    let sx = scrollTarget.left;
+    let sy = scrollTarget.top;
+    let ax = 0;
+    let ay = 0;
+    if (y < bounds.top + SCROLL_ACCURCY) {
+      ay = -Math.min(Math.max(bounds.top + SCROLL_ACCURCY - y, 10), 50) / scale;
+    } else if (y > bounds.bottom - SCROLL_ACCURCY) {
+      ay = Math.min(Math.max(y + SCROLL_ACCURCY - bounds.bottom, 10), 50) / scale;
+    }
+    if (x < bounds.left + SCROLL_ACCURCY) {
+      ax = -Math.min(Math.max(bounds.top + SCROLL_ACCURCY - y, 10), 50) / scale;
+    } else if (x > bounds.right - SCROLL_ACCURCY) {
+      ax = Math.min(Math.max(x + SCROLL_ACCURCY - bounds.right, 10), 50) / scale;
+    }
+
+    if (!ax && !ay) {
+      return;
+    }
+
+    const animate = () => {
+      let scroll = false;
+      if ((ay > 0 && sy < maxScrollHeight) || (ay < 0 && sy > 0)) {
+        sy += ay;
+        sy = Math.min(Math.max(sy, 0), maxScrollHeight);
+        scroll = true;
+      }
+      if ((ax > 0 && sx < maxScrollWidth) || (ax < 0 && sx > 0)) {
+        sx += ax;
+        sx = Math.min(Math.max(sx, 0), maxScrollWidth);
+        scroll = true;
+      }
+      if (!scroll) {
+        return;
+      }
+
+      scrollTarget.scrollTo({ left: sx, top: sy });
+      this.pid = requestAnimationFrame(animate);
+    };
+
+    animate();
+  }
+
+  cancel() {
+    if (this.pid) {
+      cancelAnimationFrame(this.pid);
+    }
+    this.pid = undefined;
+  }
+}
diff --git a/packages/designer/src/designer/simulator.ts b/packages/designer/src/designer/simulator.ts
new file mode 100644
index 000000000..36912242a
--- /dev/null
+++ b/packages/designer/src/designer/simulator.ts
@@ -0,0 +1,156 @@
+import { Component as ReactComponent, ComponentType } from 'react';
+import { LocateEvent, ISensor } from './dragon';
+import { Point } from './location';
+import Node from './document/node/node';
+import { ScrollTarget, IScrollable } from './scroller';
+import { ComponentDescriptionSpec } from './document/node/component-config';
+
+export type AutoFit = '100%';
+export const AutoFit = '100%';
+
+export interface IViewport extends IScrollable {
+  /**
+   * 视口大小
+   */
+  width: number;
+  height: number;
+
+  /**
+   * 内容大小
+   */
+  contentWidth: number | AutoFit;
+  contentHeight: number | AutoFit;
+
+  /**
+   * 内容缩放
+   */
+  scale: number;
+
+  /**
+   * 视口矩形维度
+   */
+  readonly bounds: DOMRect;
+  /**
+   * 内容矩形维度
+   */
+  readonly contentBounds: DOMRect;
+  readonly scrollTarget?: ScrollTarget;
+  /**
+   * 内容当前滚动 X
+   */
+  readonly scrollX: number;
+  /**
+   * 内容当前滚动 Y
+   */
+  readonly scrollY: number;
+
+  /**
+   * 全局坐标系转化为本地坐标系
+   */
+  toLocalPoint(point: Point): Point;
+
+  /**
+   * 本地坐标系转化为全局坐标系
+   */
+  toGlobalPoint(point: Point): Point;
+}
+
+/**
+ * 模拟器控制进程协议
+ */
+export interface ISimulator<P = object> extends ISensor {
+  /**
+   * 获得边界维度等信息
+   */
+  readonly viewport: IViewport;
+  readonly contentWindow?: Window;
+  readonly contentDocument?: Document;
+
+  // dependsAsset // like react jQuery lodash
+  // themesAsset
+  // componentsAsset
+  // simulatorUrl //
+  // utils, dataSource, constants 模拟
+  //
+  // later:
+  // layout: ComponentName
+  // 获取区块代码, 通过 components 传递，可异步获取
+  setProps(props: P): void;
+
+  /**
+   * 设置拖拽态
+   */
+  setDraggingState(state: boolean): void;
+
+  /**
+   * 是否拖拽态
+   */
+  isDraggingState(): boolean;
+
+  /**
+   * 设置拷贝态
+   */
+  setCopyState(state: boolean): void;
+
+  /**
+   * 是否拷贝态
+   */
+  isCopyState(): boolean;
+
+  /**
+   * 清除所有态：拖拽态、拷贝态
+   */
+  clearState(): void;
+
+  /**
+   * 在模拟器拖拽定位
+   */
+  locate(e: LocateEvent): any;
+
+  /**
+   * 滚动视口到节点
+   */
+  scrollToNode(node: Node, detail?: any): void;
+
+  /**
+   * 给 event 打补丁，添加 canvasX, globalX 等信息，用于拖拽
+   */
+  fixEvent(e: LocateEvent): LocateEvent;
+
+  /**
+   * 描述组件
+   */
+  describeComponent(component: Component): ComponentDescriptionSpec;
+  /**
+   * 根据组件信息获取组件类
+   */
+  getComponent(componentName: string): Component | any;
+  /**
+   * 根据节点获取节点的组件实例
+   */
+  getComponentInstance(node: Node): ComponentInstance[] | null;
+  /**
+   * 根据节点获取节点的组件运行上下文
+   */
+  getComponentContext(node: Node): object;
+
+  getClosestNodeId(elem: Element): string;
+
+  findDOMNodes(instance: ComponentInstance): Array<Element | Text> | null;
+
+  setSuspense(suspensed: boolean): void;
+  /**
+   * 销毁
+   */
+  purge(): void;
+}
+
+/**
+ * 组件类定义
+ */
+export type Component = ComponentType<any> | object;
+
+/**
+ * 组件实例定义
+ */
+export type ComponentInstance = Element | ReactComponent<any> | object;
diff --git a/packages/designer/src/index.ts b/packages/designer/src/index.ts
index e69de29bb..d7b940c2d 100644
--- a/packages/designer/src/index.ts
+++ b/packages/designer/src/index.ts
@@ -0,0 +1,3 @@
+import DesignerView from './designer';
+
+export default DesignerView;
diff --git a/packages/designer/src/module.d.ts b/packages/designer/src/module.d.ts
new file mode 100644
index 000000000..57479fc2e
--- /dev/null
+++ b/packages/designer/src/module.d.ts
@@ -0,0 +1 @@
+declare module '@ali/iceluna-sdk';
diff --git a/packages/designer/src/utils/index.ts b/packages/designer/src/utils/index.ts
deleted file mode 100644
index 35cf98d29..000000000
--- a/packages/designer/src/utils/index.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-export * from './is-object';
-export * from './is-plain-object';
-export * from './has-own-property';
-export * from './set-prototype-of';
-export * from './get-prototype-of';
-export * from './shallow-equal';
-export * from './clone-deep';
-export * from './throttle';
-export * from './unique-id';
diff --git a/packages/designer/src/utils/navtive-selection.ts b/packages/designer/src/utils/navtive-selection.ts
new file mode 100644
index 000000000..76f51f48a
--- /dev/null
+++ b/packages/designer/src/utils/navtive-selection.ts
@@ -0,0 +1,15 @@
+let nativeSelectionEnabled = true;
+const preventSelection = (e: Event) => {
+  if (nativeSelectionEnabled) {
+    return null;
+  }
+  e.preventDefault();
+  e.stopPropagation();
+  return false;
+};
+document.addEventListener('selectstart', preventSelection, true);
+document.addEventListener('dragstart', preventSelection, true);
+
+export function setNativeSelection(enableFlag: boolean) {
+  nativeSelectionEnabled = enableFlag;
+}
diff --git a/packages/designer/src/utils/parse-code.ts b/packages/designer/src/utils/parse-code.ts
deleted file mode 100644
index 643a41611..000000000
--- a/packages/designer/src/utils/parse-code.ts
+++ /dev/null
@@ -1,7 +0,0 @@
-export function parseCode(code: string): string {
-  try {
-    return JSON.parse(code);
-  } catch (e) {
-    return code;
-  }
-}
diff --git a/packages/designer/src/utils/shallow-equal.ts b/packages/designer/src/utils/shallow-equal.ts
deleted file mode 100644
index c7fdb9cb1..000000000
--- a/packages/designer/src/utils/shallow-equal.ts
+++ /dev/null
@@ -1,27 +0,0 @@
-import { hasOwnProperty } from './has-own-property';
-
-export function shallowEqual(objA: any, objB: any): boolean {
-  if (objA === objB) {
-    return true;
-  }
-
-  if (typeof objA !== 'object' || objA === null || typeof objB !== 'object' || objB === null) {
-    return false;
-  }
-
-  const keysA = Object.keys(objA);
-  const keysB = Object.keys(objB);
-
-  if (keysA.length !== keysB.length) {
-    return false;
-  }
-
-  // Test for A's keys different from B.
-  for (let i = 0; i < keysA.length; i++) {
-    if (!hasOwnProperty(objB, keysA[i]) || objA[keysA[i]] !== objB[keysA[i]]) {
-      return false;
-    }
-  }
-
-  return true;
-}
diff --git a/packages/designer/src/utils/style-point.ts b/packages/designer/src/utils/style-point.ts
deleted file mode 100644
index fb7381cbf..000000000
--- a/packages/designer/src/utils/style-point.ts
+++ /dev/null
@@ -1,55 +0,0 @@
-export default class StylePoint {
-  private lastContent: string | undefined;
-  private lastUrl: string | undefined;
-  placeholder: Element | Text;
-  next: StylePoint | null = null;
-  prev: StylePoint | null = null;
-
-  constructor(readonly id: string, readonly level: number, placeholder?: Element) {
-    if (placeholder) {
-      this.placeholder = placeholder;
-    } else {
-      this.placeholder = document.createTextNode('');
-    }
-  }
-
-  insert() {
-    if (this.next) {
-      document.head.insertBefore(this.placeholder, this.next.placeholder);
-    } else if (this.prev) {
-      document.head.insertBefore(this.placeholder, this.prev.placeholder.nextSibling);
-    } else {
-      document.head.appendChild(this.placeholder);
-    }
-  }
-
-  applyText(content: string) {
-    if (this.lastContent === content) {
-      return;
-    }
-    this.lastContent = content;
-    this.lastUrl = undefined;
-    const element = document.createElement('style');
-    element.setAttribute('type', 'text/css');
-    element.setAttribute('data-for', this.id);
-    element.appendChild(document.createTextNode(content));
-    document.head.insertBefore(element, this.placeholder);
-    document.head.removeChild(this.placeholder);
-    this.placeholder = element;
-  }
-
-  applyUrl(url: string) {
-    if (this.lastUrl === url) {
-      return;
-    }
-    this.lastContent = undefined;
-    this.lastUrl = url;
-    const element = document.createElement('link');
-    element.href = url;
-    element.rel = 'stylesheet';
-    element.setAttribute('data-for', this.id);
-    document.head.insertBefore(element, this.placeholder);
-    document.head.removeChild(this.placeholder);
-    this.placeholder = element;
-  }
-}
diff --git a/packages/designer/src/utils/type-check.ts b/packages/designer/src/utils/type-check.ts
deleted file mode 100644
index ea1aacfeb..000000000
--- a/packages/designer/src/utils/type-check.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-import { Component, isValidElement } from 'react';
-
-export function testReactType(obj: any) {
-  const t = typeof obj;
-  if (t === 'function' && obj.prototype && (obj.prototype.isReactComponent || obj.prototype instanceof Component)) {
-    return 'ReactClass';
-  } else if (t === 'object' && isValidElement(obj)) {
-    return 'ReactElement';
-  }
-  return t;
-}