diff --git a/zh-cn/application-dev/application-models/serviceextensionability.md b/zh-cn/application-dev/application-models/serviceextensionability.md
index 779781ed7aa83d3c9e8289ccb5bf833a68ed3d9e..11b31a5d2cc9399ddfc749fb8a1da55526a274a5 100644
--- a/zh-cn/application-dev/application-models/serviceextensionability.md
+++ b/zh-cn/application-dev/application-models/serviceextensionability.md
@@ -26,7 +26,7 @@
 
 ## 生命周期
 
-[ServiceExtensionAbility](../reference/apis/js-apis-app-ability-serviceExtensionAbility.md)提供了onCreate()、onRequest()、onConnect()、onDisconnect()和onDestory()生命周期回调，根据需要重写对应的回调方法。下图展示了ServiceExtensionAbility的生命周期。
+[ServiceExtensionAbility](../reference/apis/js-apis-app-ability-serviceExtensionAbility.md)提供了onCreate()、onRequest()、onConnect()、onDisconnect()和onDestroy()生命周期回调，根据需要重写对应的回调方法。下图展示了ServiceExtensionAbility的生命周期。
 
   **图1** ServiceExtensionAbility生命周期  
 ![ServiceExtensionAbility-lifecycle](figures/ServiceExtensionAbility-lifecycle.png)