diff --git a/zh-cn/application-dev/application-models/inputmethodextentionability.md b/zh-cn/application-dev/application-models/inputmethodextentionability.md
index f7c4849620bc9b8bef1ba8ba9ec45a556b1df8f3..755a591f47f099dfb0039380c4af37b5548add43 100644
--- a/zh-cn/application-dev/application-models/inputmethodextentionability.md
+++ b/zh-cn/application-dev/application-models/inputmethodextentionability.md
@@ -67,7 +67,7 @@
    
      onDestroy() {
        console.log("onDestroy.");
-       this.keyboardController.destroy();
+       this.keyboardController.onDestroy();  // 销毁窗口并去注册事件监听
      }
    }
    ```