diff --git a/apps/ofm/migrations/0006_vehicle_belong_dept.py b/apps/ofm/migrations/0006_vehicle_belong_dept.py
new file mode 100644
index 00000000..c885f838
--- /dev/null
+++ b/apps/ofm/migrations/0006_vehicle_belong_dept.py
@@ -0,0 +1,20 @@
+# Generated by Django 3.2.12 on 2025-09-11 01:53
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('system', '0006_auto_20241213_1249'),
+        ('ofm', '0005_vehicle_via'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='vehicle',
+            name='belong_dept',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='vehicle_belong_dept', to='system.dept', verbose_name='所属部门'),
+        ),
+    ]
diff --git a/apps/ofm/models.py b/apps/ofm/models.py
index 9f647d1e..383babf4 100644
--- a/apps/ofm/models.py
+++ b/apps/ofm/models.py
@@ -63,7 +63,7 @@ class LendingSeal(CommonBDModel):
     note = models.TextField('备注', null=True, blank=True)
 
 
-class Vehicle(CommonADModel):
+class Vehicle(CommonBDModel):
     """TN: 用车申请"""
     start_time = models.DateField('出车时间', blank=True, null=True)
     end_time = models.DateField('还车时间', blank=True, null=True)