diff --git a/packages/pc/src/index.ts b/packages/pc/src/index.ts
index 8289135824..d3a22c4d59 100644
--- a/packages/pc/src/index.ts
+++ b/packages/pc/src/index.ts
@@ -7,17 +7,17 @@ import {
   Marker,
   Shape,
 } from '@antv/g6-core';
-import './element';
-import './behavior';
+import { IGroup, ShapeBase as IShape, ICanvas } from '@antv/g-base';
+import * as Algorithm from '@antv/algorithm';
 import Graph from './graph/graph';
 import TreeGraph from './graph/tree-graph';
 import { Layout, registerLayout } from './layout';
 import Global from './global';
 import Util from './util';
 import Plugin from './plugin';
-import * as Algorithm from '@antv/algorithm';
+import './element';
+import './behavior';
 
-// const registerLayout = Layout.registerLayout;
 const Minimap = Plugin.Minimap;
 const Grid = Plugin.Grid;
 const Bundling = Plugin.Bundling;
@@ -53,6 +53,10 @@ export {
   Arrow,
   Marker,
   Shape,
+  // 对外包括 G-Base 的几个类型定义
+  ICanvas,
+  IGroup,
+  IShape,
 };
 
 export default {