diff --git a/apps/inm/migrations/0019_mio_mgroup.py b/apps/inm/migrations/0019_mio_mgroup.py
new file mode 100644
index 00000000..996cd640
--- /dev/null
+++ b/apps/inm/migrations/0019_mio_mgroup.py
@@ -0,0 +1,20 @@
+# Generated by Django 3.2.12 on 2024-07-30 05:23
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mtm', '0037_material_into_wm'),
+        ('inm', '0018_mioitem_count_n_b'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='mio',
+            name='mgroup',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='mtm.mgroup', verbose_name='出入库工段'),
+        ),
+    ]
diff --git a/apps/inm/views.py b/apps/inm/views.py
index a47f416b..6a69ba24 100644
--- a/apps/inm/views.py
+++ b/apps/inm/views.py
@@ -133,7 +133,7 @@ class MIOViewSet(CustomModelViewSet):
     """
     queryset = MIO.objects.all()
     select_related_fields = ['create_by', 'belong_dept', 'do_user',
-                             'submit_user', 'supplier', 'order', 'customer', 'pu_order']
+                             'submit_user', 'supplier', 'order', 'customer', 'pu_order', 'mgroup']
     prefetch_related_fields = ['materials']
     serializer_class = MIOListSerializer
     retrieve_serializer_class = MIODetailSerializer
diff --git a/apps/wpm/services.py b/apps/wpm/services.py
index 652d6b46..060412c4 100644
--- a/apps/wpm/services.py
+++ b/apps/wpm/services.py
@@ -95,6 +95,7 @@ def do_out(mio: MIO):
     生产领料到车间
     """
     belong_dept = mio.belong_dept
+    mgroup = mio.mgroup
     do_user = mio.do_user
     mioitems = MIOItem.objects.filter(mio=mio)
     for item in mioitems:
@@ -116,15 +117,15 @@ def do_out(mio: MIO):
             action_list = [[item.material, item.batch, item.count]]
         for al in action_list:
             xmaterial, xbatch, xcount = al
-            # 领到车间库存(非工段)
+            # 领到车间库存(或工段)
             wm, new_create = WMaterial.objects.get_or_create(batch=xbatch, material=xmaterial,
-                                                             belong_dept=belong_dept, mgroup=None, defaults={
+                                                             belong_dept=belong_dept, mgroup=mgroup, defaults={
                                                                  "batch": xbatch,
                                                                  "material": xmaterial,
                                                                  "count": xcount,
                                                                  "create_by": do_user,
                                                                  "belong_dept": belong_dept,
-                                                                 "mgroup": None,
+                                                                 "mgroup": mgroup,
                                                              })
             if not new_create:
                 wm.count = wm.count + item.count