diff --git a/apps/ofm/migrations/0028_papersecret_belong_dept.py b/apps/ofm/migrations/0028_papersecret_belong_dept.py
new file mode 100644
index 00000000..d25da425
--- /dev/null
+++ b/apps/ofm/migrations/0028_papersecret_belong_dept.py
@@ -0,0 +1,20 @@
+# Generated by Django 3.2.12 on 2025-10-30 05:55
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('system', '0006_auto_20241213_1249'),
+        ('ofm', '0027_auto_20251029_1426'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='papersecret',
+            name='belong_dept',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='papersecret_belong_dept', to='system.dept', verbose_name='所属部门'),
+        ),
+    ]
diff --git a/apps/ofm/models.py b/apps/ofm/models.py
index 00a460c1..1d7e89d3 100644
--- a/apps/ofm/models.py
+++ b/apps/ofm/models.py
@@ -182,7 +182,7 @@ class PatentInfo(CommonBDModel):
     ticket = models.ForeignKey('wf.ticket', verbose_name='关联工单',
                                on_delete=models.SET_NULL, related_name='patentInfo_ticket', null=True, blank=True, db_constraint=False)
     
-class Papersecret(CommonADModel):
+class Papersecret(CommonBDModel):
     """TN: 论文申密审批表单"""
     paper_name = models.CharField('拟发表论文名称', max_length=100)
     publication_name = models.CharField('拟投期刊名称', max_length=100)