diff --git a/packages/vant/src/popup/index.less b/packages/vant/src/popup/index.less
index 240ef9536..ab4a72243 100644
--- a/packages/vant/src/popup/index.less
+++ b/packages/vant/src/popup/index.less
@@ -25,10 +25,8 @@
 
     &--center {
       top: 50%;
-      left: 0;
-      right: 0;
-      margin: 0 auto;
-      transform: translateY(-50%);
+      left: 50%;
+      transform: translate3d(-50%, -50%, 0);
 
       &.van-popup--round {
         border-radius: var(--van-popup-round-border-radius);