diff --git a/apps/inm/serializers.py b/apps/inm/serializers.py
index afd2d089..a1a6a6e6 100644
--- a/apps/inm/serializers.py
+++ b/apps/inm/serializers.py
@@ -156,6 +156,8 @@ class MIOItemCreateSerializer(CustomModelSerializer):
         batch = validated_data.get("batch", None)
         if not batch:
             batch = "无"
+        if batch != '无' and len(batch) < 5:
+            raise ParseError('批次号格式错误')
         if material.is_hidden:
             raise ParseError('隐式物料不可出入库')
         if mio.type in [MIO.MIO_TYPE_RETURN_IN, MIO.MIO_TYPE_BORROW_OUT]:
diff --git a/apps/inm/services_daoru.py b/apps/inm/services_daoru.py
index a4c8421f..d1bbb2fa 100644
--- a/apps/inm/services_daoru.py
+++ b/apps/inm/services_daoru.py
@@ -156,6 +156,8 @@ def daoru_mioitems(path:str, mio:MIO):
             pass
         else:
             batch = "无"
+        if batch != '无' and len(batch) < 5:
+            raise ParseError('批次号格式错误')
         count = sheet[f"f{ind}"].value
         warehouse_name = sheet[f"g{ind}"].value
         try: