diff --git a/Ability/UIAbilityLifeCycle/README.md b/Ability/UIAbilityLifeCycle/README.md
index 01ebd7131463f5804c495361bc4520c83ade451c..a73fb6c660f6fd43cf3cfb69f88402ba35ef3d10 100644
--- a/Ability/UIAbilityLifeCycle/README.md
+++ b/Ability/UIAbilityLifeCycle/README.md
@@ -149,6 +149,20 @@ export default class EntryAbility extends UIAbility {
 }
 ```
 
+当应用的UIAbility实例已创建，且UIAbility配置为singleton启动模式时，再次调用startAbility\(\)方法启动该UIAbility实例时，只会进入该UIAbility的onNewWant\(\)回调，不会进入其onCreate\(\)和onWindowStageCreate\(\)生命周期回调。应用可以在该回调中更新要加载的资源和数据等，用于后续的UI展示。
+
+```typescript
+import { AbilityConstant, UIAbility, Want } from '@kit.AbilityKit';
+
+export default class EntryAbility extends UIAbility {
+  // ...
+
+  onNewWant(want: Want, launchParam: AbilityConstant.LaunchParam) {
+    // 更新资源、数据
+  }
+}
+```
+
 **Destory状态**
 
 Destroy状态在UIAbility实例销毁时触发。可以在onDestroy\(\)回调中进行系统资源的释放、数据的保存等操作。