diff --git a/works/clean.go b/works/clean.go
index f3bfb56..861bf92 100644
--- a/works/clean.go
+++ b/works/clean.go
@@ -34,8 +34,24 @@ func cleanTmpFolder() {
 }
 
 func cleanDB() {
+	db := sqlite3.GetDB()
 	if time.Now().Weekday() == time.Sunday && time.Now().Hour() < 1 {
-		db := sqlite3.GetDB()
-		db.Exec("VACUUM")
+		start := time.Now()
+		_, err := db.Exec("VACUUM")
+		if err != nil {
+			log.Printf("清理数据库失败: %v", err)
+			return
+		}
+		log.Printf("数据库清理完成，耗时: %v", time.Since(start))
+	}
+	now := time.Now()
+	if now.Hour() == 1 && now.Minute() < 10 {
+		start := time.Now()
+		_, err := db.Exec("PRAGMA optimize")
+		if err != nil {
+			log.Printf("优化数据库失败: %v", err)
+			return
+		}
+		log.Printf("数据库优化完成，耗时: %v", time.Since(start))
 	}
 }