diff --git a/BackendWorkerService/Quartz/Jobs/ArchiveElectricMeterDayJob.cs b/BackendWorkerService/Quartz/Jobs/ArchiveElectricMeterDayJob.cs
index cc860f5..75762a5 100644
--- a/BackendWorkerService/Quartz/Jobs/ArchiveElectricMeterDayJob.cs
+++ b/BackendWorkerService/Quartz/Jobs/ArchiveElectricMeterDayJob.cs
@@ -302,7 +302,7 @@ namespace BackendWorkerService.Quartz.Jobs
                                               `count_rawdata` int(11) NULL DEFAULT NULL,
                                               `min_rawdata` decimal(15, 3) NULL DEFAULT NULL,
                                               `max_rawdata` decimal(15, 3) NULL DEFAULT NULL,
-                                              `kwh_result` decimal(15, 3) NULL DEFAULT NULL,
+                                              `kwh_result` decimal(15, 3) NULL DEFAULT -1.0,
                                               `avg_rawdata` decimal(15, 3) NULL DEFAULT NULL,
                                               `sum_rawdata` decimal(15, 3) NULL DEFAULT NULL,
                                               `is_complete` tinyint(3) UNSIGNED NULL DEFAULT NULL COMMENT '是否完成，0:未完成 1:完成',
diff --git a/FrontendWebApi/ApiControllers/HydroMeterController.cs b/FrontendWebApi/ApiControllers/HydroMeterController.cs
index e67160b..4d823d9 100644
--- a/FrontendWebApi/ApiControllers/HydroMeterController.cs
+++ b/FrontendWebApi/ApiControllers/HydroMeterController.cs
@@ -117,7 +117,7 @@ namespace FrontendWebApi.ApiControllers
                 var aemmEndDate = input.tableType == "year" ? $"year(DATE_ADD(fd.date, INTERVAL +1 {input.tableType}))" : $"DATE_ADD(fd.date, INTERVAL +1 {input.tableType})";
                 var aemmStaDate = input.tableType == "year" ? "year(fd.date)" : "fd.date";
                 var sql = $@"set @i = -1;
-                            select fd.device_number, case when aemm.avg_rawdata = -1 then 'NaN' when aemm.avg_rawdata is null then 0.00 else aemm.avg_rawdata end as avg_rawdata, DATE_FORMAT(fd.date, @dateFormat) as timestamp
+                            select fd.device_number, case when aemm.avg_rawdata = -1.0 then 'NaN' when aemm.avg_rawdata is null then 0.00 else aemm.avg_rawdata end as avg_rawdata, DATE_FORMAT(fd.date, @dateFormat) as timestamp
                             from (
 	                            select *
 	                            from (