diff --git a/components/core/style/index.less b/components/core/style/index.less
index 374e212d28c..06938f0a2be 100644
--- a/components/core/style/index.less
+++ b/components/core/style/index.less
@@ -66,6 +66,13 @@
   }
 }
 
+.ant-dropdown-menu {
+  & > ul {
+    list-style: none;
+    margin: 0;
+    padding: 0;
+  }
+}
 
 @table-prefix-cls: ~'@{ant-prefix}-table';
 @table-td-cls: ~'@{table-prefix-cls}-td';