diff --git a/influxdb_api.py b/influxdb_api.py
index b1c3a9d..76d065b 100644
--- a/influxdb_api.py
+++ b/influxdb_api.py
@@ -1472,7 +1472,7 @@ def query_SCADA_data_by_device_ID_and_timerange(query_ids_list: List[str], start
                 # 获取记录的时间和监测值
                 records_list.append({
                     "time": record["_time"],
-                    "value": record["_value"]
+                    "value": record.get_value()
                 })
         SCADA_dict[device_id] = records_list