diff --git a/src/components/treeSelect/treeSelectNew.vue b/src/components/treeSelect/treeSelectNew.vue
index fcd07294a..9656955c2 100644
--- a/src/components/treeSelect/treeSelectNew.vue
+++ b/src/components/treeSelect/treeSelectNew.vue
@@ -273,6 +273,10 @@
 </script>
 
 <style lang="less" scoped>
+/deep/ .expanded{
+    background-image: none !important;
+    background-size:100% 100%;
+}
 .el-drawer__body{
 & > div:first-child{
       display: flex;