diff --git a/zh-cn/application-dev/ui/ui-ts-local-storage.md b/zh-cn/application-dev/ui/ui-ts-local-storage.md
index ee93e66a837ecb64bb7c635106dd5700369a9fae..427e9e333ade5857e7763c160b318f2f4378adfd 100644
--- a/zh-cn/application-dev/ui/ui-ts-local-storage.md
+++ b/zh-cn/application-dev/ui/ui-ts-local-storage.md
@@ -282,7 +282,7 @@ clear(): boolean
 import Ability from '@ohos.application.Ability'
 export default class MainAbility extends Ability {    
   storage : LocalStorage    
-  onCreate(want) {    
+  onCreate() {    
     this.storage = new LocalStorage();
     this.storage.setOrCreate("storageSimpleProp",121);    
     console.log("[Demo MainAbility onCreate]");