diff --git a/src/router/index.js b/src/router/index.js
index 3e5f0ef..ba3141d 100644
--- a/src/router/index.js
+++ b/src/router/index.js
@@ -250,7 +250,8 @@ export const constantRouterMap = [
     component: () => import('@/views/bigscreenDesigner/viewer'),
     hidden: true,
     meta: {
-      requireAuth: true
+      requireAuth: true,
+      keepAlive: true,
     }
   },
   {