diff --git a/apps/wpm/serializers.py b/apps/wpm/serializers.py
index 28ae5893..32cf7f6e 100644
--- a/apps/wpm/serializers.py
+++ b/apps/wpm/serializers.py
@@ -916,7 +916,7 @@ class MlogbwCreateUpdateSerializer(CustomModelSerializer):
 
 class MlogbwStartTestSerializer(serializers.Serializer):
     mlogbw_ids = serializers.ListField(child=serializers.CharField(), label="mlogbwId列表")
-    test_equip = serializers.CharField(label="测试设备", allow_null=True, required=False)
+    test_equip = serializers.CharField(label="测试设备", allow_null=True, required=False, allow_blank=True)
     test_user = serializers.CharField(label="测试人员")
     defects = serializers.ListField(child=serializers.CharField(), required=False, allow_null=True, label="缺陷项列表")
     testitems = serializers.ListField(child=serializers.CharField(), required=False, allow_null=True, label="测试项列表")