diff --git a/Service/Charger/MyTask/EmeterEnergyRecordTask.cs b/Service/Charger/MyTask/EmeterEnergyRecordTask.cs
index 408aedb..9b59963 100644
--- a/Service/Charger/MyTask/EmeterEnergyRecordTask.cs
+++ b/Service/Charger/MyTask/EmeterEnergyRecordTask.cs
@@ -36,6 +36,11 @@ public class EmeterEnergyRecordTask : ITask
         {
             List<EmeterEnergy> list = new List<EmeterEnergy>();
             List<EmeterEnergyChange> listEmeterEnergyChanges = new List<EmeterEnergyChange>();
+            
+            DateTime time = DateTime.Now.AddDays(-7);
+            EmeterEnergyRepository.Delete(i=>i.UploadTime<time);
+            EmeterEnergyChangeRepository.Delete(i=>i.UploadTime<time);
+            
             foreach (var keyValuePair in ClientMgr.Dictionary)
             {
                 var chargerClient = keyValuePair.Value;