diff --git a/test_server/cms/migrations/0009_material_cate.py b/test_server/cms/migrations/0009_material_cate.py
new file mode 100644
index 0000000..4e67593
--- /dev/null
+++ b/test_server/cms/migrations/0009_material_cate.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.0.4 on 2023-05-05 02:53
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cms', '0008_material_sort'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='material',
+            name='cate',
+            field=models.CharField(default='未分类', max_length=50, verbose_name='分类'),
+        ),
+    ]
diff --git a/test_server/cms/models.py b/test_server/cms/models.py
index 13d492b..076984c 100644
--- a/test_server/cms/models.py
+++ b/test_server/cms/models.py
@@ -35,7 +35,7 @@ class Material(CommonModel):
     description = models.TextField('描述', null=True, blank=True)
     path = models.CharField(max_length=1000, verbose_name='文件地址')
     poster = models.CharField(max_length=10000, verbose_name='封面地址', null=True, blank=True)
-    cate = models.CharField('分类', max_length=50, verbose_name='未分类')
+    cate = models.CharField('分类', max_length=50, default='未分类')
     type = models.CharField('格式', default='文档', max_length=50)
     down_count = models.IntegerField('阅读量', default=0)
     sort = models.IntegerField('排序码', default=1)