diff --git a/apps/mtm/migrations/0056_mgroup_batch_append_code.py b/apps/mtm/migrations/0056_mgroup_batch_append_code.py
new file mode 100644
index 00000000..fe6c2e1f
--- /dev/null
+++ b/apps/mtm/migrations/0056_mgroup_batch_append_code.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.12 on 2025-04-21 02:29
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mtm', '0055_auto_20250327_1239'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='mgroup',
+            name='batch_append_code',
+            field=models.BooleanField(default=False, verbose_name='批号追加工段标识'),
+        ),
+    ]
diff --git a/apps/mtm/models.py b/apps/mtm/models.py
index d911e2a1..05ab8133 100644
--- a/apps/mtm/models.py
+++ b/apps/mtm/models.py
@@ -154,6 +154,7 @@ class Mgroup(CommonBModel):
         '直接材料', default=list, blank=True, help_text='material的ID列表')
     test_materials = models.JSONField(
         '检测材料', default=list, blank=True, help_text='material的ID列表')
+    batch_append_code = models.BooleanField('批号追加工段标识', default=False)
     sort = models.PositiveSmallIntegerField('排序', default=1)
     need_enm = models.BooleanField('是否进行能源监测', default=True)
     is_running = models.BooleanField('是否正常运行', default=False)
diff --git a/apps/wpm/services.py b/apps/wpm/services.py
index 410b22fe..04621267 100644
--- a/apps/wpm/services.py
+++ b/apps/wpm/services.py
@@ -29,7 +29,8 @@ myLogger = logging.getLogger('log')
 def generate_new_batch(old_batch: str, mlog: Mlog):
     new_batch = old_batch
     supplier = mlog.supplier
-    process = mlog.mgroup.process
+    mgroup = mlog.mgroup
+    process = mgroup.process
     if mlog.mtype == Mlog.MTYPE_OUT:
         supplier_number = supplier.number if supplier else ''
         if supplier_number:
@@ -40,6 +41,9 @@ def generate_new_batch(old_batch: str, mlog: Mlog):
             new_batch = f'{new_batch}>{number}'
         if mlog.index:
             new_batch = f'{new_batch}>{mlog.index}'
+    if mgroup.batch_append_code:
+        if mgroup.code:
+            new_batch = f'{new_batch}>{mgroup.code}'
     return new_batch
 
 def find_material_can_change(material: Material, mgroup_to: Mgroup):