diff --git a/components/form/style/index.less b/components/form/style/index.less
index 893bd445b6..ed3d8dfec9 100644
--- a/components/form/style/index.less
+++ b/components/form/style/index.less
@@ -79,7 +79,7 @@ input[type="checkbox"] {
   }
 
   &-with-help {
-    margin-bottom: @form-item-margin-bottom - @font-size-base * @line-height-base - 3;
+    margin-bottom: @form-item-margin-bottom - @font-size-base * @line-height-base;
   }
 
   &-label {
@@ -111,7 +111,6 @@ input[type="checkbox"] {
 
 .@{form-prefix-cls}-explain {
   line-height: 1.5;
-  margin-top: 3px;
 }
 
 .@{form-prefix-cls}-explain,