diff --git a/README.md b/README.md
index 352aa33..5c27c75 100644
--- a/README.md
+++ b/README.md
@@ -140,7 +140,7 @@ operation.reset();
 
 请求类型:POST
 
-请求参数: ``` {"tableName":"#表名"} ```
+请求参数: ``` {"tableName":"#表名", "groupId":"#分组Id(可选)"} ```
 
 返回值:
 ```json