diff --git a/apps/wpm/models.py b/apps/wpm/models.py
index cb8357b1..824ed964 100644
--- a/apps/wpm/models.py
+++ b/apps/wpm/models.py
@@ -145,7 +145,7 @@ class Mlog(CommonADModel):
 
 class Mlogb(BaseModel):
     mlog = models.ForeignKey(Mlog, verbose_name='关联日志',
-                             on_delete=models.CASCADE)
+                             on_delete=models.CASCADE, related_name='b_mlog')
     material_out = models.ForeignKey(
         Material, verbose_name='产物', on_delete=models.CASCADE, related_name='mlogb_material_out')
     count_ok = models.PositiveIntegerField('合格数量', default=0)
diff --git a/apps/wpm/views.py b/apps/wpm/views.py
index 44d00818..b1cf9951 100644
--- a/apps/wpm/views.py
+++ b/apps/wpm/views.py
@@ -1,4 +1,5 @@
 from django.db import transaction
+from django.db.models import Prefetch
 from django.shortcuts import render
 from rest_framework.decorators import action
 from rest_framework.exceptions import ParseError
@@ -12,7 +13,7 @@ from apps.utils.viewsets import CustomGenericViewSet, CustomModelViewSet
 from apps.utils.mixins import BulkCreateModelMixin
 
 from .filters import SfLogExpFilter, SfLogFilter, WMaterialFilter, MlogFilter, HandoverFilter
-from .models import SfLog, SfLogExp, StLog, WMaterial, Mlog, Handover
+from .models import SfLog, SfLogExp, StLog, WMaterial, Mlog, Handover, Mlogb
 from .serializers import (SflogExpSerializer, SfLogSerializer, StLogSerializer, WMaterialSerializer,
                           MlogSerializer, MlogRelatedSerializer, DeptBatchSerializer, HandoverSerializer, GenHandoverSerializer, GenHandoverWmSerializer)
 from .services import mlog_submit, update_mtask, handover_submit
@@ -124,7 +125,7 @@ class MlogViewSet(CustomModelViewSet):
     serializer_class = MlogSerializer
     select_related_fields = ['create_by', 'update_by', 'mtask',
                              'handle_user', 'handle_user_2', 'equipment', 'equipment_2']
-    prefetch_related_fields = ['handle_users', 'material_outs']
+    prefetch_related_fields = ['handle_users', 'material_outs', 'b_mlog']
     filterset_class = MlogFilter
 
     def perform_destroy(self, instance):