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 0ca33fe6c52ba81705d3f5a2df1f887d2f469ab1..52c0101a8d23f94dab22d7274ce697a2d2f65000 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
@@ -618,13 +618,7 @@ 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()
   ```