diff --git a/apps/enm/tasks.py b/apps/enm/tasks.py
index e465adec..b2f90a92 100644
--- a/apps/enm/tasks.py
+++ b/apps/enm/tasks.py
@@ -40,6 +40,8 @@ def get_tag_val():
             mr_one.tag_id, mr_one.tag_val, mr_one.tag_code, mr_one.tag_update = row
             mr_one.mpoint, _  = Mpoint.objects.get_or_create(code=mr_one.tag_code, defaults={'name': mr_one.tag_code, 'code': mr_one.tag_code, 'unit': 'unknown'})
             mr_one.save()
+            last_tag_id = mr_one.tag_id
+        cache.set('last_tag_id', last_tag_id)
 
 @shared_task(base=CustomTask)
 def cal_mpointstat_hour(mpointId: str, year: int, month: int, day: int, hour: int):