diff --git a/components/table/index.en-US.md b/components/table/index.en-US.md
index d0b24b0a5a..bdd2b7a5c8 100644
--- a/components/table/index.en-US.md
+++ b/components/table/index.en-US.md
@@ -238,7 +238,7 @@ Properties for expandable.
 | indentSize | Indent size in pixels of tree data | number | 15 |  |
 | rowExpandable | Enable row can be expandable | (record) => boolean | - |  |
 | showExpandColumn | Show expand column | boolean | true | 4.18.0 |
-| onExpand | Callback executed when the row expand icon is clicked | function(expanded, record) | - |  |
+| onExpand | Callback executed when the row expand icon is clicked | function(record, event) | - |  |
 | onExpandedRowsChange | Callback executed when the expanded rows change | function(expandedRows) | - |  |
 
 ### rowSelection
diff --git a/components/table/index.zh-CN.md b/components/table/index.zh-CN.md
index b35ce8051c..70f4a13295 100644
--- a/components/table/index.zh-CN.md
+++ b/components/table/index.zh-CN.md
@@ -240,7 +240,7 @@ const columns = [
 | indentSize | 展示树形数据时，每层缩进的宽度，以 px 为单位 | number | 15 |  |
 | rowExpandable | 设置是否允许行展开 | (record) => boolean | - |  |
 | showExpandColumn | 设置是否展示行展开列 | boolean | true | 4.18.0 |
-| onExpand | 点击展开图标时触发 | function(expanded, record) | - |  |
+| onExpand | 点击展开图标时触发 | function(record, event) | - |  |
 | onExpandedRowsChange | 展开的行变化时触发 | function(expandedRows) | - |  |
 
 ### rowSelection