diff --git a/hb_server/apps/em/serializers.py b/hb_server/apps/em/serializers.py
index e60b2a4..c22238d 100644
--- a/hb_server/apps/em/serializers.py
+++ b/hb_server/apps/em/serializers.py
@@ -7,7 +7,6 @@ from apps.system.serializers import OrganizationSimpleSerializer, UserSimpleSeri
 
 
 class EquipmentListSerializer(ModelSerializer):
-    belong_dept_ = OrganizationSimpleSerializer(source='belong_dept', read_only=True)
     keeper_ = UserSimpleSerializer(source='keeper', read_only=True)
     step_ = serializers.SerializerMethodField()
     class Meta:
@@ -17,7 +16,7 @@ class EquipmentListSerializer(ModelSerializer):
     @staticmethod
     def setup_eager_loading(queryset):
         """ Perform necessary eager loading of data. """
-        queryset = queryset.select_related('belong_dept','keeper')
+        queryset = queryset.select_related('keeper')
         return queryset
 
     def get_step_(self, obj):