diff --git a/hb_server/apps/qm/serializers.py b/hb_server/apps/qm/serializers.py
index 628ba00..b91206b 100644
--- a/hb_server/apps/qm/serializers.py
+++ b/hb_server/apps/qm/serializers.py
@@ -46,7 +46,7 @@ class TestRecordItemSerializer(serializers.ModelSerializer):
         fields = '__all__'
         
 class TestRecordCreateSerializer(serializers.ModelSerializer):
-    record_data = TestRecordItemCreateSerializer(many=True)
+    record_data = TestRecordItemCreateSerializer(many=True, read_only=True)
     class Meta:
         model = TestRecord
         fields = ['form', 'record_data', 'is_testok', 'fifo_item']