diff --git a/hb_server/apps/wpm/migrations/0048_operationwproduct_place.py b/hb_server/apps/wpm/migrations/0048_operationwproduct_place.py
new file mode 100644
index 0000000..6fab08b
--- /dev/null
+++ b/hb_server/apps/wpm/migrations/0048_operationwproduct_place.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.9 on 2022-01-13 07:35
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wpm', '0047_wproductflow_last_test_result'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='operationwproduct',
+            name='place',
+            field=models.CharField(blank=True, max_length=200, null=True, verbose_name='摆放位置'),
+        ),
+    ]
diff --git a/hb_server/apps/wpm/models.py b/hb_server/apps/wpm/models.py
index fd3fe4a..4ecb946 100644
--- a/hb_server/apps/wpm/models.py
+++ b/hb_server/apps/wpm/models.py
@@ -211,7 +211,7 @@ class OperationWproduct(BaseModel):
     material = models.ForeignKey(Material, verbose_name='操作时的物料状态', on_delete=models.CASCADE)
     subproduction_plan = models.ForeignKey(SubProductionPlan, verbose_name='当前子生产计划', on_delete=models.CASCADE, related_name='ow_subplan')
     ng_sign = models.PositiveSmallIntegerField('当时的不合格标记', choices= WProduct.ng_choices, null=True, blank=True)
-    place = models.CharField('摆放位置', null=True, blank=True)
+    place = models.CharField('摆放位置', null=True, blank=True, max_length=200)
     class Meta:
         unique_together = (
             ('operation','wproduct')