diff --git a/ui/dasadmin/src/views/backend/malfunction/index.vue b/ui/dasadmin/src/views/backend/malfunction/index.vue
index b9a941c5..20f04947 100644
--- a/ui/dasadmin/src/views/backend/malfunction/index.vue
+++ b/ui/dasadmin/src/views/backend/malfunction/index.vue
@@ -349,6 +349,7 @@ const readFile = (data: tableItemData) => {
 const closePreviewFileDialog = () => {
     previewTreeData.value = []
     previewChartData = []
+    selectPreviewTree = []
     curSeries = []
     previewChartInstance && previewChartInstance.clear()
 }
@@ -377,7 +378,7 @@ const previewSearchTree = (val: string) => {
     })
 }
 
-const selectPreviewTree: any = []
+let selectPreviewTree: any = []
 const handleCheckChange = (data: any, state: boolean) => {
     previewChartInstance && previewChartInstance.clear()
     console.log(data, state)