diff --git a/components/table/style/size.less b/components/table/style/size.less
index c80680a7cb..f05d269866 100644
--- a/components/table/style/size.less
+++ b/components/table/style/size.less
@@ -44,13 +44,3 @@
 // =                            Small                             =
 // ================================================================
 .table-size(~'small', @table-padding-vertical-sm, @table-padding-horizontal-sm, @table-font-size-sm);
-
-.@{table-prefix-cls}-small {
-  .@{table-prefix-cls}-thead > tr > th {
-    background-color: @table-header-bg-sm;
-  }
-  .@{table-prefix-cls}-selection-column {
-    width: 46px;
-    min-width: 46px;
-  }
-}