diff --git a/models/repo_statistic.go b/models/repo_statistic.go
index a95340225..5fddb769e 100755
--- a/models/repo_statistic.go
+++ b/models/repo_statistic.go
@@ -1,6 +1,7 @@
 package models
 
 import (
+	"fmt"
 	"time"
 
 	"code.gitea.io/gitea/modules/timeutil"
@@ -35,3 +36,24 @@ type RepoStatistic struct {
 	CreatedUnix timeutil.TimeStamp `xorm:"INDEX created"`
 	UpdatedUnix timeutil.TimeStamp `xorm:"INDEX updated"`
 }
+
+
+func DeleteRepoStatDaily(date time.Time) error {
+	sess := xStatistic.NewSession()
+	defer sess.Close()
+	if err := sess.Begin(); err != nil {
+		return fmt.Errorf("Begin: %v", err)
+	}
+
+	if _, err := sess.Where("date = ?", date).Delete(&RepoStatistic{}); err != nil {
+		return fmt.Errorf("Delete: %v", err)
+	}
+
+	if err := sess.Commit(); err != nil {
+		sess.Close()
+		return fmt.Errorf("Commit: %v", err)
+	}
+
+	sess.Close()
+	return nil
+}
diff --git a/routers/repo/repo_statistic.go b/routers/repo/repo_statistic.go
new file mode 100755
index 000000000..85184db21
--- /dev/null
+++ b/routers/repo/repo_statistic.go
@@ -0,0 +1,39 @@
+package repo
+
+import (
+	"time"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/log"
+)
+
+//auto daily or manually
+func RepoStatisticDaily() {
+	//delete all yesterday
+	log.Info("", time.Now())
+	yesterday := time.Now().AddDate(0, 0, -1)
+	log.Info("", yesterday)
+	if err := models.DeleteRepoStatDaily(yesterday); err != nil {
+		log.Error("DeleteRepoStatDaily failed: %v", err.Error())
+		return
+	}
+
+	repos, err := models.GetAllRepositories()
+	if err != nil {
+		log.Error("GetAllRepositories failed: %v", err.Error())
+		return
+	}
+
+	for _, repo := range repos {
+		log.Info("start statistic: %s", repo.Name)
+		repoStat, err := models.GetRepoKPIStats(repo)
+		if err != nil {
+			log.Error("GetRepoKPIStats failed: %s", repo.Name)
+			log.Error("failed statistic: %s", repo.Name)
+			continue
+		}
+		log.Info("", repoStat.DevelopAge)
+		log.Info("finish statistic: %s", repo.Name)
+	}
+
+}