diff --git a/components/input-number/style/index.less b/components/input-number/style/index.less
index 5cf23233edf3..65fa198ae6bf 100644
--- a/components/input-number/style/index.less
+++ b/components/input-number/style/index.less
@@ -164,8 +164,8 @@
     cursor: pointer;
     &-inner {
       top: 50%;
-      margin-top: -6px;
       text-align: center;
+      transform: translateY(-50%);
     }
     &:hover {
       height: 60% !important;