diff --git a/apps/wpm/migrations/0120_alter_batchst_data.py b/apps/wpm/migrations/0120_alter_batchst_data.py
new file mode 100644
index 00000000..bcfb31b7
--- /dev/null
+++ b/apps/wpm/migrations/0120_alter_batchst_data.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.12 on 2025-07-17 02:20
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('wpm', '0119_mlogb_route'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='batchst',
+            name='data',
+            field=models.JSONField(blank=True, default=dict, verbose_name='数据'),
+        ),
+    ]
diff --git a/apps/wpm/models.py b/apps/wpm/models.py
index 13c397fa..7dba96c7 100644
--- a/apps/wpm/models.py
+++ b/apps/wpm/models.py
@@ -648,7 +648,7 @@ class BatchSt(BaseModel):
     version = models.IntegerField("版本号", default=1, db_index=True) 
     first_time = models.DateTimeField("首次操作时间", null=True, blank=True)
     last_time = models.DateTimeField("最后操作时间", null=True, blank=True)
-    data = models.JSONField("数据", default=list, blank=True)
+    data = models.JSONField("数据", default=dict, blank=True)
     material_start = models.ForeignKey(Material, verbose_name="起始物料", on_delete=models.SET_NULL, null=True, blank=True)
     mio = models.ForeignKey("inm.mio", verbose_name="由何出入库记录创建", on_delete=models.CASCADE, null=True, blank=True)
     mioitem = models.ForeignKey("inm.mioitem", verbose_name="由何出入库记录明细创建", on_delete=models.CASCADE, null=True, blank=True)