diff --git a/packages/designer/build.json b/packages/designer/build.json
index 4fbf8701e..bd5cf18dd 100644
--- a/packages/designer/build.json
+++ b/packages/designer/build.json
@@ -1,8 +1,5 @@
 {
   "plugins": [
-    [
-      "build-plugin-component"
-    ],
-    "./build.plugin.js"
+    "build-plugin-component"
   ]
 }
diff --git a/packages/designer/build.plugin.js b/packages/designer/build.plugin.js
deleted file mode 100644
index 49ec39f2d..000000000
--- a/packages/designer/build.plugin.js
+++ /dev/null
@@ -1,7 +0,0 @@
-module.exports = ({ onGetJestConfig }) => {
-  // console.log('== test ==');
-  onGetJestConfig((jestConfig) => {
-    // console.log(jestConfig);
-    return jestConfig;
-  });
-};
diff --git a/packages/designer/build.test.json b/packages/designer/build.test.json
new file mode 100644
index 000000000..93dfcd983
--- /dev/null
+++ b/packages/designer/build.test.json
@@ -0,0 +1,5 @@
+{
+  "plugins": [
+    "@ali/lowcode-test-mate/plugin/index.ts"
+  ]
+}
diff --git a/packages/designer/src/document/node/node.ts b/packages/designer/src/document/node/node.ts
index 2c83d118f..df0ebef6e 100644
--- a/packages/designer/src/document/node/node.ts
+++ b/packages/designer/src/document/node/node.ts
@@ -22,6 +22,7 @@ import { TransformStage } from './transform-stage';
 import { ReactElement } from 'react';
 import { SettingTopEntry } from 'designer/src/designer';
 import { EventEmitter } from 'events';
+import { includeSlot, removeSlot } from '../../utils/slot';
 
 /**
  * 基础节点
@@ -709,6 +710,11 @@ export class Node<Schema extends NodeSchema = NodeSchema> {
 
   addSlot(slotNode: Node) {
     slotNode.internalSetParent(this as ParentalNode, true);
+    const slotName = slotNode?.getExtraProp('name')?.getAsString();
+    // 一个组件下的所有 slot，相同 slotName 的 slot 应该是唯一的
+    if (includeSlot(this, slotName)) {
+      removeSlot(this, slotName);
+    }
     this._slots.push(slotNode);
   }
 
diff --git a/packages/designer/src/document/node/props/prop.ts b/packages/designer/src/document/node/props/prop.ts
index b09eb787f..704a99ba6 100644
--- a/packages/designer/src/document/node/props/prop.ts
+++ b/packages/designer/src/document/node/props/prop.ts
@@ -6,7 +6,6 @@ import { valueToSource } from './value-to-source';
 import { Props } from './props';
 import { SlotNode, Node } from '../node';
 import { TransformStage } from '../transform-stage';
-import { includesSlot } from '../../../utils/slot';
 
 export const UNSET = Symbol.for('unset');
 export type UNSET = typeof UNSET;
@@ -118,7 +117,7 @@ export class Prop implements IPropParent {
     }
 
     if (type === 'slot') {
-      const schema = this._slotNode!.export(stage);
+      const schema = this._slotNode?.export(stage) || {};
       if (stage === TransformStage.Render) {
         return {
           type: 'JSSlot',
@@ -294,11 +293,9 @@ export class Prop implements IPropParent {
       this._slotNode.import(slotSchema);
     } else {
       const { owner } = this.props;
-      if (!includesSlot(owner, data.name)) {
-        this._slotNode = owner.document.createNode<SlotNode>(slotSchema);
-        owner.addSlot(this._slotNode);
-        this._slotNode.internalSetSlotFor(this);
-      }
+      this._slotNode = owner.document.createNode<SlotNode>(slotSchema);
+      owner.addSlot(this._slotNode);
+      this._slotNode.internalSetSlotFor(this);
     }
     this.dispose();
   }
diff --git a/packages/designer/src/utils/slot.ts b/packages/designer/src/utils/slot.ts
index 3630c0c0e..9fe1ef5f7 100644
--- a/packages/designer/src/utils/slot.ts
+++ b/packages/designer/src/utils/slot.ts
@@ -1,8 +1,19 @@
 import { Node } from '../document/node/node';
 
-export function includesSlot(node: Node, slotName: string | undefined): boolean {
+export function includeSlot(node: Node, slotName: string | undefined): boolean {
   const { slots = [] } = node;
   return slots.some(slot => {
     return slotName && slotName === slot?.getExtraProp('name')?.getAsString();
   });
 }
+
+export function removeSlot(node: Node, slotName: string | undefined): boolean {
+  const { slots = [] } = node;
+  return slots.some((slot, idx) => {
+    if (slotName && slotName === slot?.getExtraProp('name')?.getAsString()) {
+      slots.splice(idx, 1);
+      return true;
+    }
+    return false;
+  });
+}
diff --git a/packages/designer/tests/project/project.test.ts b/packages/designer/tests/project/project.test.ts
index 24720fde7..54ccedf18 100644
--- a/packages/designer/tests/project/project.test.ts
+++ b/packages/designer/tests/project/project.test.ts
@@ -29,7 +29,7 @@ jest.mock('../../src/designer/designer', () => {
 
 let designer = null;
 beforeAll(() => {
-  designer = new Designer({} as any);
+  designer = new Designer({});
 });
 
 describe('schema 生成节点模型测试', () => {
diff --git a/packages/designer/tests/utils/index.ts b/packages/designer/tests/utils/index.ts
index f8fb61e4e..70fce0af2 100644
--- a/packages/designer/tests/utils/index.ts
+++ b/packages/designer/tests/utils/index.ts
@@ -1,28 +1 @@
-export function getIdsFromSchema(schema, ids = []) {
-  if (!schema) return ids;
-  const { componentName, id, children } = schema;
-  if (componentName) {
-    ids.push(id);
-  }
-  if (Array.isArray(children) && children.length > 0) {
-    children.forEach(node => getIdsFromSchema(node, ids));
-  }
-  return ids;
-}
-
-export function getNodeFromSchemaById(schema, _id) {
-  if (!schema) return null;
-  const { id, children } = schema;
-  let retNode = null;
-  if (_id === id) return schema;
-  if (Array.isArray(children) && children.length > 0) {
-    children.some(node => {
-      retNode = getNodeFromSchemaById(node, _id);
-      if (retNode) {
-        return true;
-      }
-      return false;
-    });
-  }
-  return retNode;
-}
\ No newline at end of file
+export { getIdsFromSchema, getNodeFromSchemaById } from '@ali/lowcode-test-mate/es/utils';