diff --git a/zh-cn/application-dev/reference/apis/js-apis-service-extension-ability.md b/zh-cn/application-dev/reference/apis/js-apis-service-extension-ability.md
index f3a72caed5eddbb876cadf1308be11c30cc481d9..0942e5ac8c1ce16ae548dd567204354cedb63417 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-service-extension-ability.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-service-extension-ability.md
@@ -192,7 +192,7 @@ onReconnect(want: Want): void;
 
   ```js
   class ServiceExt extends ServiceExtension {
-    onDisconnect(want) {
+    onReconnect(want) {
       console.log('onDisconnect, want:' + want.abilityName);
     }
   }