diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index bfe1df68..faf97ea4 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -824,10 +824,9 @@ class MlogbInUpdateSerializer(CustomModelSerializer):
                 MlogbDefect.objects.bulk_create(mlogb_defect_objects)
             ins.cal_count_pn_jgqbl(cal_mlog=False)
             # 只有普通工序的才可联动
-            material_out:Material = ins.mlog.material_out
-            route:Route = mlog.route
-            if material_out.tracking == Material.MA_TRACKING_BATCH:
-                if route and route.process and route.process.mtype == Process.PRO_NORMAL:
+            route:Route = ins.route if ins.route else ins.mlog.route
+            if route and route.process and route.process.mtype == Process.PRO_NORMAL:
+                if route.material_out.tracking == Material.MA_TRACKING_BATCH:
                     mlogbout_qs = Mlogb.objects.filter(mlog=ins.mlog, mlogb_from=ins)
                     if mlogbout_qs.count() == 1:
                         mlogbout = mlogbout_qs.first()