diff --git a/typescript/core/widget.ts b/typescript/core/widget.ts
index a3c5ddf921..c2b307bfb4 100644
--- a/typescript/core/widget.ts
+++ b/typescript/core/widget.ts
@@ -33,7 +33,11 @@ export interface _Widget extends _OB {
     /**
      * 真实dom的类jQuery对象
      */
-    element: any;
+    element: {
+        width(): number;
+        height(): number;
+        [key: string]: any;
+    };
     /**
      * 子元素
      */