diff --git a/src/styles/components/menu.less b/src/styles/components/menu.less
index 8e5eab8c..dc5affc2 100644
--- a/src/styles/components/menu.less
+++ b/src/styles/components/menu.less
@@ -111,6 +111,7 @@
     &-horizontal &-submenu .@{select-dropdown-prefix-cls} {
         min-width: 100%;
         width: auto;
+        max-height: none;
         .@{menu-prefix-cls}-item{
             height: auto;
             line-height: normal;