diff --git a/components/cascader/style/index.less b/components/cascader/style/index.less
index 81fda49683..e450e848d5 100644
--- a/components/cascader/style/index.less
+++ b/components/cascader/style/index.less
@@ -110,10 +110,6 @@
       color: @disabled-color;
       font-size: 12px;
       line-height: 12px;
-      transition: transform 0.2s;
-      &&-expand {
-        transform: rotate(180deg);
-      }
     }
   }