diff --git a/src/action-sheet/index.less b/src/action-sheet/index.less
index 9928c7bcb..17b2e124f 100644
--- a/src/action-sheet/index.less
+++ b/src/action-sheet/index.less
@@ -9,7 +9,7 @@
   color: @action-sheet-item-text-color;
 
   &__content {
-    flex: 1;
+    flex: 1 auto;
     overflow-y: auto;
     -webkit-overflow-scrolling: touch;
   }