diff --git a/style/components/menu.less b/style/components/menu.less
index 2f334fbc0b..4faa00a32b 100644
--- a/style/components/menu.less
+++ b/style/components/menu.less
@@ -87,6 +87,13 @@
     }
   }
 
+  &-vertical &-sub {
+    border-right: 0;
+    .@{menu-prefix-cls}-item {
+      border-right: 0;
+    }
+  }
+
   &-inline {
     .@{menu-prefix-cls}-selected,
     .@{menu-prefix-cls}-item-selected {