diff --git a/ats-tracer/controller.go b/ats-tracer/controller.go
index 4d9c7c0..f09ad9b 100644
--- a/ats-tracer/controller.go
+++ b/ats-tracer/controller.go
@@ -61,6 +61,21 @@ func (c *Controller) Run() (err error) {
 	}
 }
 
+// 清理24小时前的ProviderAts
+func (c *Controller) CleanAts() error {
+	ticker := time.NewTicker(24 * time.Hour)
+	defer ticker.Stop()
+	for {
+		select {
+		case <-c.ctx.Done():
+			glog.Infof("cleaner退出")
+			return nil
+		case <-ticker.C:
+			c.storage.DB().Delete(v2.ProviderAts{}, "created_at < ?", time.Now().Add(-24*time.Hour))
+		}
+	}
+}
+
 // 返回ready
 func (c *Controller) Ready() bool {
 	return c.tracers.Ready()
diff --git a/cmd/main.go b/cmd/main.go
index 2d50f41..a429d3d 100644
--- a/cmd/main.go
+++ b/cmd/main.go
@@ -83,6 +83,7 @@ func main() {
 	wg.Go(spider.Run)
 	wg.Go(watcher.Run)
 	wg.Go(tracer.Run)
+	wg.Go(tracer.CleanAts)
 
 	// http
 	r := fiber.New(fiber.Config{ErrorHandler: web.ErrHandle})