diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index 968ae690..f306bccc 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -1049,6 +1049,11 @@ class MlogbwStartTestSerializer(serializers.Serializer):
                     test_equip=test_equip
                 )
 
+class MlogbOutPatchUpdateSerializer(CustomModelSerializer):
+    class Meta:
+        model = Mlogb
+        fields = ["batch"]
+
 class MlogbOutUpdateSerializer(CustomModelSerializer):
     mlogbdefect = MlogbDefectSerializer(many=True, required=False)
     count_json = CountJsonSerializer(required=False, many=True)
diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index 236bd779..1a0fc458 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -50,7 +50,8 @@ from .serializers import (
     MlogQuickSerializer,
     MlogbwStartTestSerializer,
     HandoverListSerializer,
-    BatchChangeSerializer
+    BatchChangeSerializer,
+    MlogbOutPatchUpdateSerializer
 )
 from .services import mlog_submit, handover_submit, mlog_revert, get_batch_dag, handover_revert
 from apps.wpm.services import mlog_submit_validate, generate_new_batch
@@ -1020,18 +1021,22 @@ class MlogbInViewSet(BulkCreateModelMixin, BulkUpdateModelMixin, BulkDestroyMode
 
 
 class MlogbOutViewSet(BulkUpdateModelMixin, CustomGenericViewSet):
-    perms_map = {"put": "mlog.update"}
+    perms_map = {"put": "mlog.update", "patch": "mlog.update"}
     queryset = Mlogb.objects.filter(material_out__isnull=False)
     serializer_class = MlogbOutUpdateSerializer
+    partial_update_serializer_class = MlogbOutPatchUpdateSerializer
 
     def perform_update(self, serializer):
-        ins: Mlogb = serializer.instance
-        mlog = MlogViewSet.lock_and_check_can_update(ins.mlog)
-        material_out = serializer.validated_data.get("material_out")
-        if material_out and material_out.tracking == Material.MA_TRACKING_SINGLE:
-            raise ParseError("单件产品不支持直接修改")
-        ins: Mlogb = serializer.save()
-        mlog.cal_mlog_count_from_mlogb()
+        if self.request.method == "PATCH":
+            serializer.save()
+        else:
+            ins: Mlogb = serializer.instance
+            mlog = MlogViewSet.lock_and_check_can_update(ins.mlog)
+            material_out = serializer.validated_data.get("material_out")
+            if material_out and material_out.tracking == Material.MA_TRACKING_SINGLE:
+                raise ParseError("单件产品不支持直接修改")
+            ins: Mlogb = serializer.save()
+            mlog.cal_mlog_count_from_mlogb()
 
 
 class FmlogViewSet(CustomModelViewSet):