diff --git a/style/components/datepicker/TimePanel.less b/style/components/datepicker/TimePanel.less
index 35ce39fae1..08869c1beb 100644
--- a/style/components/datepicker/TimePanel.less
+++ b/style/components/datepicker/TimePanel.less
@@ -7,6 +7,7 @@
   z-index: 10;
   position: absolute;
   outline: none;
+  border-radius: 6px;
 }
 
 .@{calendar-prefix-cls}-time-panel-header {