diff --git a/src/views/mes/ganttChart/index.vue b/src/views/mes/ganttChart/index.vue
index daf8c4fd..8cead246 100644
--- a/src/views/mes/ganttChart/index.vue
+++ b/src/views/mes/ganttChart/index.vue
@@ -73,8 +73,8 @@ const scheduleList = ref<DevicePlanView[]>([])
 const activeDevice = ref<DevicePlanView>()
 
 const buildDefaultRange = () => {
-  const start = dayjs().startOf('day')
-  const end = start.add(7, 'day').endOf('day')
+  const start = dayjs().startOf('month').startOf('day')
+  const end = dayjs().endOf('month').endOf('day')
   return [start.format('YYYY-MM-DD HH:mm:ss'), end.format('YYYY-MM-DD HH:mm:ss')]
 }