diff --git a/components/form/style/index.less b/components/form/style/index.less
index 49d0f66285..79e81b1d8e 100644
--- a/components/form/style/index.less
+++ b/components/form/style/index.less
@@ -71,6 +71,7 @@ input[type="checkbox"] {
 
   &-control {
     line-height: 32px;
+    position: relative;
   }
 
   &.@{form-prefix-cls}-item-with-help {