diff --git a/safesite/services.py b/safesite/services.py
index 986843dc..7eb1ff45 100644
--- a/safesite/services.py
+++ b/safesite/services.py
@@ -1,7 +1,7 @@
 import locale
 from croniter import croniter
 from cron_descriptor import get_description
-from safesite.models import MySchedule, GridTaskSet, PeriodicTask
+from safesite.models import MySchedule, GridTaskSet, PeriodicTask, CrontabSchedule, IntervalSchedule
 from django.core.exceptions import ObjectDoesNotExist
 period_dict = {
         "days": "天",
@@ -14,7 +14,10 @@ def get_chinese_description(type:str = 'interval', data: dict = {}):
     """转换为汉语描述
     """
     if type == 'interval':
-        return f"每隔{data['every']}{period_dict[data['period']]}"
+        try:
+            return f"每隔{data['every']}{period_dict[data['period']]}"
+        except KeyError:
+            return ''
     elif type == 'crontab':
         exp = f"{data['minute']} {data['hour']} {data['day_of_month']} {data['month_of_year']} {data['day_of_week']}"
         try:
@@ -26,26 +29,22 @@ def get_chinese_description(type:str = 'interval', data: dict = {}):
     return ''
 
 def correct_myschedule():
-    qs = MySchedule.objects.all()
-    for ind, item in enumerate(qs):
-        typeset = item.typeset
-        if typeset == 'interval':
-            interval = item.interval
-            item.name = get_chinese_description(typeset, {'every': interval.every, 'period': interval.period})
-            item.save()
-        elif typeset == 'crontab':
-            try:
-                crontab = item.crontab
-                if crontab:
-                    item.name = get_chinese_description(typeset,
+    cs = CrontabSchedule.objects.all()
+    for crontab in cs:
+        name = get_chinese_description('crontab',
                     {"minute": crontab.minute, "hour": crontab.hour, "day_of_month": crontab.day_of_month, 
                     "month_of_year": crontab.month_of_year, "day_of_week": crontab.day_of_week})
-                    if item.name == '':
-                        crontab.delete()
-                        item.delete()
-                else:
-                    PeriodicTask.objects.filter(gridtaskset_periodictask__myschedule=item).delete()
-                    item.delete()
-            except ObjectDoesNotExist:
-                GridTaskSet.objects.filter(myschedule=item).delete()
-                item.delete()
\ No newline at end of file
+        if name == '':
+            MySchedule.objects.filter(crontab=crontab).delete()
+            crontab.delete()
+        else:
+            MySchedule.objects.filter(crontab=crontab).update(name=name, typeset='crontab')
+    
+    ints = IntervalSchedule.objects.all()
+    for interval in ints:
+        name = get_chinese_description('interval', {'every': interval.every, 'period': interval.period})
+        if name == '':
+            MySchedule.objects.filter(interval=interval).delete()
+            interval.delete()
+        else:
+            MySchedule.objects.filter(interval=interval).update(name=name, typeset='interval')
\ No newline at end of file