diff --git a/zh-cn/application-dev/ability/stage-ability.md b/zh-cn/application-dev/ability/stage-ability.md
index a79d00e17aa1e009f994561c1d651a4083f063d0..059ce352d1d640d21fcbee315a111c62fe8a1ea8 100644
--- a/zh-cn/application-dev/ability/stage-ability.md
+++ b/zh-cn/application-dev/ability/stage-ability.md
@@ -58,7 +58,7 @@ Ability功能如下（Ability类，具体的API详见[接口文档](../reference
    ```
    import AbilityStage from "@ohos.application.AbilityStage"
    ```
-2. 实现AbilityStage接口。
+2. 实现AbilityStage接口，接口生成的默认相对路径：entry\src\main\ets\Application\AbilityStage.ts。
    ```ts
    export default class MyAbilityStage extends AbilityStage {
     onCreate() {
@@ -70,7 +70,7 @@ Ability功能如下（Ability类，具体的API详见[接口文档](../reference
    ```js
    import Ability from '@ohos.application.Ability'
    ```
-4. 实现Ability生命周期接口。
+4. 实现Ability生命周期接口，接口默认生成的相对路径：entry\src\main\ets\MainAbility\MainAbility.ts。
 
    在`onWindowStageCreate(windowStage)`中通过loadContent接口设置应用要加载的页面，window接口的使用详见[窗口开发指导](../windowmanager/window-guidelines.md)。
    ```ts
diff --git a/zh-cn/application-dev/ability/stage-serviceextension.md b/zh-cn/application-dev/ability/stage-serviceextension.md
index c2f5868308aa0707a4f3291ebcc6eaf46bc83165..b075b1bd87d28fbb6332ff822df4ab442cdfcb81 100644
--- a/zh-cn/application-dev/ability/stage-serviceextension.md
+++ b/zh-cn/application-dev/ability/stage-serviceextension.md
@@ -26,7 +26,7 @@ ExtensionAbility，是Stage模型中新增的扩展组件的基类，一般用
 
 1.创建ServiceExtensionAbility
 
-开发者在创建TS文件中自定义类继承ServiceExtensionAbility，重写基类回调函数，示例如下：
+开发者在创建TS文件中自定义类继承ServiceExtensionAbility，重写基类回调函数，接口生成的默认相对路径：entry\src\main\ets\ServiceExtAbility\ServiceExtAbility.ts，示例如下：
 
   ```js
   import rpc from '@ohos.rpc'