diff --git a/apps/wpm/models.py b/apps/wpm/models.py
index 4500fb6a..c5c7e53c 100644
--- a/apps/wpm/models.py
+++ b/apps/wpm/models.py
@@ -8,6 +8,7 @@ from apps.em.models import Equipment
 from apps.system.models import Dept
 from datetime import timedelta
 from apps.pum.models import Supplier
+from django.db.models import Sum
 
 # Create your models here.
 
@@ -106,6 +107,9 @@ class WMaterial(CommonBDModel):
     material_origin = models.ForeignKey(Material, verbose_name='原始物料', on_delete=models.SET_NULL, null=True, blank=True, related_name='wm_mo')
     count_xtest = models.PositiveIntegerField('已检数量', null=True, blank=True)
 
+    @property
+    def count_working(self, obj):
+        return Mlogb.objects.filter(wm_in=obj, mlog__work_end_time__isnull=True).aggregate(count=Sum('count'))['count'] or 0
 
 class Fmlog(CommonADModel):
     route = models.ForeignKey(Route, verbose_name='生产路线', on_delete=models.SET_NULL, null=True, blank=True)
diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index 5611e42c..a468824b 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -181,6 +181,7 @@ class WMaterialSerializer(CustomModelSerializer):
         source='belong_dept.name', read_only=True)
     material_origin_name = serializers.StringRelatedField(source='material_origin', read_only=True)
     notok_sign_name = serializers.SerializerMethodField()
+    count_working = serializers.CharField(read_only=True, label='在制数量')
 
     def get_notok_sign_name(self, obj):
         return getattr(NotOkOption, obj.notok_sign, NotOkOption.qt).label if obj.notok_sign else None