diff --git a/typescript/core/widget.ts b/typescript/core/widget.ts
index 6871bf09b4..d642150996 100644
--- a/typescript/core/widget.ts
+++ b/typescript/core/widget.ts
@@ -484,6 +484,11 @@ export declare class Widget extends OB {
      */
     beforeInit?(cb: Function): void;
 
+    /**
+     * 渲染前
+     */
+    beforeRender?(cb: Function): void;
+
     /**
      * 创建前
      */