diff --git a/style/mobile/components/pull-down-refresh/v2/_index.less b/style/mobile/components/pull-down-refresh/v2/_index.less
index cce2bc0a13..8a05c7050d 100644
--- a/style/mobile/components/pull-down-refresh/v2/_index.less
+++ b/style/mobile/components/pull-down-refresh/v2/_index.less
@@ -8,6 +8,7 @@
 
   &__track {
     position: relative;
+    height: 100%;
 
     &--loosing {
       transition: transform ease .24s;