diff --git a/zh-cn/application-dev/reference/apis/js-apis-data-ability.md b/zh-cn/application-dev/reference/apis/js-apis-data-ability.md
index 0cab31026023a9dc7c8e2cab502ccc4260dc790a..d1b36bf5fc1871de402047db0b1d2d836afceb2a 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-data-ability.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-data-ability.md
@@ -619,13 +619,7 @@ distinct(): DataAbilityPredicates
 
 **示例：**
   ```js
-  dataAbilityPredicates.equalTo("NAME", "Rose").distinct("NAME")
-  let promiseDistinct =  rdbStore.query(predicates, ["NAME"])
-  promiseDistinct.then((resultSet) => {   
-      console.log("distinct")
-  }).catch((err) => {
-      expect(null).assertFail();
-  })
+  dataAbilityPredicates.equalTo("NAME", "Rose").distinct()
   ```