diff --git a/docs/api_userguide.md b/docs/api_userguide.md
index b08590d..079c893 100644
--- a/docs/api_userguide.md
+++ b/docs/api_userguide.md
@@ -37,7 +37,7 @@
 * request字段说明：
 
 | 名称  | 类型 |必填| 默认值 | 说明 |
-| ---  | ---  | --- |---  | --- | ---|
+| --- | --- | --- |---- | --- | ----|
 | viewId| string| 是|无|指标集ID |
 | viewName|  string| 是| 无|指标集名称|
 | attrId|  string| 是| 无|指标ID|