diff --git a/apps/mtm/serializers.py b/apps/mtm/serializers.py
index 36154844..4389b899 100644
--- a/apps/mtm/serializers.py
+++ b/apps/mtm/serializers.py
@@ -43,6 +43,13 @@ class MaterialSerializer(CustomModelSerializer):
         if Material.objects.filter(name=validated_data['name'], specification=validated_data.get('specification', None), model=validated_data.get('model', None), process=validated_data.get('process', None)).exists():
             raise serializers.ValidationError('物料已存在')
         return super().create(validated_data)
+    
+    def validate(self, attrs):
+        type = attrs['type']
+        if type in [Material.MA_TYPE_GOOD, Material.MA_TYPE_HALFGOOD]:
+            if attrs.get('process', None) is None:
+                raise ValidationError('半成品/成品必须指定所到工序')
+        return super().validate(attrs)
 
 
 class MgroupSerializer(CustomModelSerializer):