diff --git a/apps/wpmw/migrations/0007_wpr_number_out.py b/apps/wpmw/migrations/0007_wpr_number_out.py
new file mode 100644
index 00000000..2a5b8e49
--- /dev/null
+++ b/apps/wpmw/migrations/0007_wpr_number_out.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.12 on 2025-06-25 10:18
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wpmw', '0006_auto_20250513_1100'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='wpr',
+            name='number_out',
+            field=models.CharField(blank=True, max_length=50, null=True, unique=True, verbose_name='对外编号'),
+        ),
+    ]
diff --git a/apps/wpmw/models.py b/apps/wpmw/models.py
index 03d4f75f..77a8c3d8 100644
--- a/apps/wpmw/models.py
+++ b/apps/wpmw/models.py
@@ -16,6 +16,7 @@ class Wpr(BaseModel):
     """
 
     number = models.CharField("编号", max_length=50, null=True, blank=True)
+    number_out = models.CharField("对外编号", max_length=50, null=True, blank=True, unique=True)
     version = models.PositiveIntegerField("版本号", default=9999)
     state = models.PositiveSmallIntegerField('状态', default=10, choices=WmStateOption.choices)
     material = models.ForeignKey(Material, verbose_name="当前物料形态", on_delete=models.CASCADE, related_name="material_wpr")