diff --git a/test_server/crm/migrations/0040_auto_20220215_2120.py b/test_server/crm/migrations/0040_auto_20220215_2120.py
new file mode 100644
index 0000000..1164dd6
--- /dev/null
+++ b/test_server/crm/migrations/0040_auto_20220215_2120.py
@@ -0,0 +1,19 @@
+# Generated by Django 3.0.4 on 2022-02-15 13:20
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('crm', '0039_remove_candidate_gender'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='candidate',
+            name='consumer',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='candidate_consumer', to='crm.Consumer'),
+        ),
+    ]
diff --git a/test_server/crm/models.py b/test_server/crm/models.py
index 357c193..972cf98 100644
--- a/test_server/crm/models.py
+++ b/test_server/crm/models.py
@@ -105,7 +105,7 @@ class SendCode(CommonModel):
     code = models.CharField(max_length=6, verbose_name= '验证码')
 
 class Candidate(CommonModel):
-    consumer = models.ForeignKey(Consumer, on_delete=models.DO_NOTHING, related_name='candidate_consumer', null=True, blank=True)
+    consumer = models.ForeignKey(Consumer, on_delete=models.SET_NULL, related_name='candidate_consumer', null=True, blank=True)
     workscope = models.ForeignKey(WorkScope, on_delete=models.DO_NOTHING, related_name='candidate_workscope', null=True, blank=True)
     examtest = models.OneToOneField(to='examtest.examtest', verbose_name='关联考试', null=True, blank=True, on_delete=models.DO_NOTHING)
     is_manual = models.BooleanField('是否手动创建', default=False)