diff --git a/packages/demo/src/editor/config.js b/packages/demo/src/editor/config.js
index 88d9b7248..7223c6031 100644
--- a/packages/demo/src/editor/config.js
+++ b/packages/demo/src/editor/config.js
@@ -120,6 +120,12 @@ export default {
     init: async function init(editor) {
       const assets = await editor.utils.get('./assets.json');
       editor.set('assets', assets);
+      const simulatorUrl = [
+        'https://dev.g.alicdn.com/ali-lowcode/ali-lowcode-engine/0.9.50/react-simulator-renderer.css',
+        'https://dev.g.alicdn.com/ali-lowcode/ali-lowcode-engine/0.9.50/react-simulator-renderer.js',
+      ];
+      editor.set('simulatorUrl', simulatorUrl);
+      // editor.set('renderEnv', 'rax');
 
       const schema = await editor.utils.get('./schema.json');
       editor.set('schema', schema);
diff --git a/packages/designer/src/builtin-simulator/host.ts b/packages/designer/src/builtin-simulator/host.ts
index 370892f17..20e417675 100644
--- a/packages/designer/src/builtin-simulator/host.ts
+++ b/packages/designer/src/builtin-simulator/host.ts
@@ -225,7 +225,7 @@ export class BuiltinSimulatorHost implements ISimulatorHost<BuiltinSimulatorProp
     const vendors = [
       // required & use once
       assetBundle(
-        this.get('environment') || this.renderEnv === 'rax' ? defaultRaxEnvironment : defaultEnvironment,
+        this.get('environment') || (this.renderEnv === 'rax' ? defaultRaxEnvironment : defaultEnvironment),
         AssetLevel.Environment,
       ),
       // required & use once
@@ -236,7 +236,7 @@ export class BuiltinSimulatorHost implements ISimulatorHost<BuiltinSimulatorProp
       assetBundle(this.theme, AssetLevel.Theme),
       // required & use once
       assetBundle(
-        this.get('simulatorUrl') || this.renderEnv === 'rax' ? defaultRaxSimulatorUrl : defaultSimulatorUrl,
+        this.get('simulatorUrl') || (this.renderEnv === 'rax' ? defaultRaxSimulatorUrl : defaultSimulatorUrl),
         AssetLevel.Runtime,
       ),
     ];
diff --git a/packages/plugin-designer/src/index.tsx b/packages/plugin-designer/src/index.tsx
index cc09a7310..c7ae58ae3 100644
--- a/packages/plugin-designer/src/index.tsx
+++ b/packages/plugin-designer/src/index.tsx
@@ -1,6 +1,7 @@
 import React, { PureComponent } from 'react';
 import { Editor } from '@ali/lowcode-editor-core';
 import { DesignerView, Designer } from '@ali/lowcode-designer';
+import { Asset } from '@ali/lowcode-utils';
 import './index.scss';
 
 export interface PluginProps {
@@ -13,6 +14,7 @@ interface DesignerPluginState {
   extraEnvironment?: any[] | null;
   renderEnv?: string;
   device?: string;
+  simulatorUrl: Asset | null;
 }
 
 export default class DesignerPlugin extends PureComponent<PluginProps, DesignerPluginState> {
@@ -24,6 +26,7 @@ export default class DesignerPlugin extends PureComponent<PluginProps, DesignerP
     extraEnvironment: null,
     renderEnv: 'default',
     device: 'default',
+    simulatorUrl: null,
   };
 
   private _mounted = true;
@@ -39,6 +42,7 @@ export default class DesignerPlugin extends PureComponent<PluginProps, DesignerP
       const assets = await editor.onceGot('assets');
       const renderEnv = await editor.get('renderEnv');
       const device = await editor.get('device');
+      const simulatorUrl = await editor.get('simulatorUrl');
       if (!this._mounted) {
         return;
       }
@@ -49,6 +53,7 @@ export default class DesignerPlugin extends PureComponent<PluginProps, DesignerP
         extraEnvironment,
         renderEnv,
         device,
+        simulatorUrl,
       };
       this.setState(state);
     } catch (e) {
@@ -71,8 +76,7 @@ export default class DesignerPlugin extends PureComponent<PluginProps, DesignerP
 
   render(): React.ReactNode {
     const { editor } = this.props;
-    const { componentMetadatas, library, extraEnvironment, renderEnv, device } = this.state;
-
+    const { componentMetadatas, library, extraEnvironment, renderEnv, device, simulatorUrl } = this.state;
     if (!library || !componentMetadatas) {
       // TODO: use a Loading
       return null;
@@ -90,6 +94,7 @@ export default class DesignerPlugin extends PureComponent<PluginProps, DesignerP
           extraEnvironment,
           renderEnv,
           device,
+          simulatorUrl,
         }}
       />
     );
diff --git a/packages/rax-simulator-renderer/package.json b/packages/rax-simulator-renderer/package.json
index 8d7ecbdfd..a44d95f6b 100644
--- a/packages/rax-simulator-renderer/package.json
+++ b/packages/rax-simulator-renderer/package.json
@@ -55,5 +55,5 @@
   "publishConfig": {
     "registry": "https://registry.npm.alibaba-inc.com"
   },
-  "homepage": "https://unpkg.alibaba-inc.com/@ali/lowcode-rax-simulator-renderer@1.0.4-0/build/index.html"
+  "homepage": "https://unpkg.alibaba-inc.com/@ali/lowcode-rax-simulator-renderer@1.0.5-0/build/index.html"
 }