diff --git a/components/input/style/mixin.less b/components/input/style/mixin.less
index 786290cdd..363d25d6f 100644
--- a/components/input/style/mixin.less
+++ b/components/input/style/mixin.less
@@ -7,11 +7,13 @@
 .input-lg() {
   padding: @input-padding-vertical-lg @input-padding-horizontal;
   height: @input-height-lg;
+  line-height: @input-height-lg;
 }
 
 .input-sm() {
   padding: @input-padding-vertical-sm @input-padding-horizontal;
   height: @input-height-sm;
+  line-height: @input-height-sm;
 }
 
 // input status
@@ -46,7 +48,7 @@
   height: @input-height-base;
   cursor: text;
   font-size: @font-size-base;
-  line-height: @line-height-base;
+  line-height: @input-height-base;
   color: @input-color;
   background-color: @input-bg;
   background-image: none;