diff --git a/apps/wpm/models.py b/apps/wpm/models.py
index 600a52ad..02195c10 100644
--- a/apps/wpm/models.py
+++ b/apps/wpm/models.py
@@ -125,6 +125,10 @@ class WMaterial(CommonBDModel):
     def count_working(self):
         return Mlogb.objects.filter(wm_in=self, mlog__submit_time__isnull=True).aggregate(count=Sum('count_use'))['count'] or 0
 
+    @property
+    def count_handovering(self): 
+        return  Handoverb.objects.filter(wm=self, submit_time__isnull=True).aggregate(count=Sum('count'))['count'] or 0
+
     @classmethod
     def mat_in_qs(cls, mtask: Mtask, qs=None):
         """
diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index e1f79d87..c0928944 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -192,6 +192,7 @@ class WMaterialSerializer(CustomModelSerializer):
     notok_sign_name = serializers.SerializerMethodField()
     defect_name = serializers.CharField(source="defect.name", read_only=True)
     count_working = serializers.IntegerField(read_only=True, label='在制数量')
+    count_handovering = serializers.IntegerField(read_only=True, label='正在交送的数量')
 
     def get_notok_sign_name(self, obj):
         return getattr(NotOkOption, obj.notok_sign, NotOkOption.qt).label if obj.notok_sign else None
@@ -202,8 +203,10 @@ class WMaterialSerializer(CustomModelSerializer):
     
     def to_representation(self, instance):
         ret = super().to_representation(instance)
-        if 'count' in ret:
+        if 'count' in ret and 'count_working' in ret:
             ret['count_cando'] = str(Decimal(ret['count']) - Decimal(ret['count_working']))
+        if 'count' in ret and 'count_handovering' in ret:
+            ret['count_canhandover'] = str(Decimal(ret['count']) - Decimal(ret['count_handovering']))
         return ret
 
 class MlogbDefectSerializer(CustomModelSerializer):