diff --git a/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.scss b/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.scss
index 12dd8d99b5..49eed5361f 100644
--- a/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.scss
+++ b/dolphinscheduler-ui/src/js/conf/home/pages/dag/_source/dag.scss
@@ -27,7 +27,7 @@
     height: 100%;
     top: 0;
     left: 0;
-    z-index: 1000;
+    z-index: 10000;
   }
 }