diff --git a/components/input-number/style/index.less b/components/input-number/style/index.less
index f865df881c..7e83cf08a7 100644
--- a/components/input-number/style/index.less
+++ b/components/input-number/style/index.less
@@ -60,7 +60,6 @@
     .disabled();
     .@{input-number-prefix-cls}-input {
       cursor: not-allowed;
-      background-color: @disabled-bg;
     }
     .@{input-number-prefix-cls}-handler-wrap {
       display: none;
@@ -74,17 +73,12 @@
     -moz-appearance: textfield;
     height: @input-height-base - 2px;
     transition: all 0.3s linear;
-    color: @input-color;
-    background-color: @input-bg;
+    background-color: transparent;
     border: 0;
     border-radius: @border-radius-base;
     padding: 0 @control-padding-horizontal - 1px;
     display: block;
     .placeholder();
-
-    &[disabled] {
-      .disabled();
-    }
   }
 
   &-lg {
@@ -109,7 +103,7 @@
     border-left: @border-width-base @border-style-base @border-color-base;
     width: 22px;
     height: 100%;
-    background: @component-background;
+    background: transparent;
     position: absolute;
     top: 0;
     right: 0;