diff --git a/server/marketserver/service/contribution.go b/server/marketserver/service/contribution.go
index 10b0a783..29eeacd4 100644
--- a/server/marketserver/service/contribution.go
+++ b/server/marketserver/service/contribution.go
@@ -2,8 +2,10 @@ package service
 
 import (
 	"f5"
+	"fmt"
 	"main/constant"
 	"q5"
+	"time"
 )
 
 type accountContricution struct {
@@ -26,6 +28,7 @@ type contribution struct {
 
 func (this *contribution) init() {
 	this.accountContricutionlist = q5.ConcurrentMap[string, *accountContricution]{}
+	go this.checkContributionList()
 }
 
 func (this *contribution) unInit() {
@@ -250,3 +253,24 @@ func (this *contribution) GetGlobalContribution(instant bool) (float64, error) {
 
 	return this.globalContribution, nil
 }
+
+func (this *contribution) checkContributionList() {
+	fmt.Println("checkContributionList start")
+	for {
+		if time.Now().UTC().Hour() == 0 {
+			nowseconds := f5.GetApp().GetRealSeconds()
+			deletelist := []string{}
+			this.accountContricutionlist.Range(func(key string, value *accountContricution) bool {
+				if value.gcTime+86400 < nowseconds {
+					deletelist = append(deletelist, key)
+				}
+				return true
+			})
+
+			for _, account := range deletelist {
+				this.accountContricutionlist.Delete(account)
+			}
+		}
+		time.Sleep((time.Second * 1800))
+	}
+}