diff --git a/components/table/style/selection.tsx b/components/table/style/selection.tsx
index 2e968162a1..eaec41863e 100644
--- a/components/table/style/selection.tsx
+++ b/components/table/style/selection.tsx
@@ -37,7 +37,7 @@ const genSelectionStyle: GenerateStyle<TableToken, CSSObject> = (token) => {
       },
 
       [`table tr th${componentCls}-selection-column${componentCls}-cell-fix-left`]: {
-        zIndex: token.zIndexTableFixed,
+        zIndex: token.zIndexTableFixed + 1,
       },
 
       [`table tr th${componentCls}-selection-column::after`]: {