diff --git a/dashboard/basic-services/schema.md b/dashboard/basic-services/schema.md
index a10a47ef..e310260a 100644
--- a/dashboard/basic-services/schema.md
+++ b/dashboard/basic-services/schema.md
@@ -101,15 +101,15 @@ fields 详细参数
 | 字段类型  | 支持的查询操作符                                   |
 | :------ | :--------------                                  |
 | id      | =, in, range, !=, not in                        |
-| string  | =, in, contains, !=, isnull, not in, regex      |
-| integer | =, >, >=, <, <=, in, range, !=, not in, isnull  |
-| number  | =, >, >=, <, <=, in, range, !=, not in, isnull  |
+| string  | =, in, contains, !=, is null, not in, regex      |
+| integer | =, >, >=, <, <=, in, range, !=, not in, is null  |
+| number  | =, >, >=, <, <=, in, range, !=, not in, is null  |
 | boolean | =, exists                                       |
 | array   | =, in, not in, is null, all                     |
 | geojson  | center, intersects, nearsphere                 |
 | date    | =, >, >=, <, <=, range                          |
-| file    | isnull                                          |
-| object  | =, hasKey, isnull                               |
+| file    | is null                                          |
+| object  | =, has_key, is null                               |
 | pointer | =, in, range, !=, not in                        |
 
 操作符介绍及使用规则
@@ -129,7 +129,7 @@ fields 详细参数
 | regex       | 正则表达式                     |
 | not in      | 不存在于在数组中                |
 | is null     | 是否为空                       |
-| hasKey      | 是否存在属性（仅限 Object 类型） |
+| has_key      | 是否存在属性（仅限 Object 类型） |
 | center      | 请参考 [withincircle](/js-sdk/schema/geo.md)  |
 | intersects  | 请参考 [include](/js-sdk/schema/geo.md)       |
 | nearsphere  | 请参考 [withinRegion](/js-sdk/schema/geo.md)  |
diff --git a/dashboard/schema.md b/dashboard/schema.md
index 4150e796..bf465b68 100644
--- a/dashboard/schema.md
+++ b/dashboard/schema.md
@@ -117,15 +117,15 @@
   | 字段类型 | 支持的查询操作符 |
   | ------- | ------ |
   | id      | =, in, range, !=, not in      |
-  | string  | =, in, contains, !=, isnull, not in, regex       |
-  | integer | =, >, >=, <, <=, in, range, !=, not in, isnull       |
-  | number  | =, >, >=, <, <=, in, range, !=, not in, isnull       |
+  | string  | =, in, contains, !=, is null, not in, regex       |
+  | integer | =, >, >=, <, <=, in, range, !=, not in, is null       |
+  | number  | =, >, >=, <, <=, in, range, !=, not in, is null       |
   | boolean | =, exists                               |
   | array   | =, in, not in, is null, all                              |
   | geojson | center, intersects, nearsphere       |
   | date    | =, >, >=, <, <=, range       |
-  | file    | isnull    |
-  | object    | =, hasKey, isnull    |
+  | file    | is null    |
+  | object    | =, has_key, is null    |
   | pointer    |  =, in, range, !=, not in      |
   ​
 
@@ -147,7 +147,7 @@
   | regex    |    正则表达式 |
   | not in  |    不存在于在数组中    |
   | is null |    是否为空     |
-  | hasKey  |    是否存在属性（仅限 Object 类型）     |
+  | has_key  |    是否存在属性（仅限 Object 类型）     |
   | center  |    请参考[withincircle](../js-sdk/schema/geo.md)  |
   | intersects |  请参考[include](../js-sdk/schema/geo.md)         |
   | nearsphere |  请参考[withinRegion](../js-sdk/schema/geo.md)       |