diff --git a/src/views/warn/alarm/alarm.data.ts b/src/views/warn/alarm/alarm.data.ts
index c1a1c19..8b2cae7 100644
--- a/src/views/warn/alarm/alarm.data.ts
+++ b/src/views/warn/alarm/alarm.data.ts
@@ -192,7 +192,7 @@ export const columns: BasicColumn[] = [
   {
     title: '持续时长',
     dataIndex: 'timeDiffStr',
-    width: 90,
+    width: 85,
     customRender: ({ record }) => {
       const diffMs = record.currentTime - toTimestamp(record.insertTime)
       return getDate(diffMs)