diff --git a/style/web/components/cascader/_index.less b/style/web/components/cascader/_index.less
index d2e0610a25..43a43fb793 100644
--- a/style/web/components/cascader/_index.less
+++ b/style/web/components/cascader/_index.less
@@ -196,6 +196,7 @@
 
     &.@{prefix}-is-selected {
       color: @cascader-item-color-selected;
+      background: @cascader-item-background-color-expanded;
 
       & .@{prefix}-checkbox__label {
         color: @cascader-item-color-selected;