diff --git a/kernel/model/index_fix.go b/kernel/model/index_fix.go
index 323c62ee0..992c54a24 100644
--- a/kernel/model/index_fix.go
+++ b/kernel/model/index_fix.go
@@ -49,38 +49,32 @@ func checkIndex() {
 	checkIndexOnce.Do(func() {
 		logging.LogInfof("start checking index...")
 
-		task.AppendTask(task.DatabaseIndexFix, removeDuplicateDatabaseIndex)
+		removeDuplicateDatabaseIndex()
 		sql.FlushQueue()
 
-		task.AppendTask(task.DatabaseIndexFix, resetDuplicateBlocksOnFileSys)
-
-		task.AppendTask(task.DatabaseIndexFix, fixBlockTreeByFileSys)
+		resetDuplicateBlocksOnFileSys()
 		sql.FlushQueue()
 
-		task.AppendTask(task.DatabaseIndexFix, fixDatabaseIndexByBlockTree)
+		fixBlockTreeByFileSys()
 		sql.FlushQueue()
 
-		task.AppendTask(task.DatabaseIndexFix, removeDuplicateDatabaseRefs)
+		fixDatabaseIndexByBlockTree()
+		sql.FlushQueue()
+
+		removeDuplicateDatabaseRefs()
 
 		// 后面要加任务的话记得修改推送任务栏的进度 util.PushStatusBar(fmt.Sprintf(Conf.Language(58), 1, 5))
 
-		task.AppendTask(task.DatabaseIndexFix, func() {
-			util.PushStatusBar(Conf.Language(185))
-		})
 		debug.FreeOSMemory()
+		util.PushStatusBar(Conf.Language(185))
 		logging.LogInfof("finish checking index")
 	})
 }
 
-var autoFixLock = sync.Mutex{}
-
 // removeDuplicateDatabaseRefs 删除重复的数据库引用关系。
 func removeDuplicateDatabaseRefs() {
 	defer logging.Recover()
 
-	autoFixLock.Lock()
-	defer autoFixLock.Unlock()
-
 	util.PushStatusBar(fmt.Sprintf(Conf.Language(58), 5, 5))
 	duplicatedRootIDs := sql.GetRefDuplicatedDefRootIDs()
 	for _, rootID := range duplicatedRootIDs {
@@ -96,9 +90,6 @@ func removeDuplicateDatabaseRefs() {
 func removeDuplicateDatabaseIndex() {
 	defer logging.Recover()
 
-	autoFixLock.Lock()
-	defer autoFixLock.Unlock()
-
 	util.PushStatusBar(fmt.Sprintf(Conf.Language(58), 1, 5))
 	duplicatedRootIDs := sql.GetDuplicatedRootIDs("blocks")
 	if 1 > len(duplicatedRootIDs) {
@@ -142,9 +133,6 @@ func removeDuplicateDatabaseIndex() {
 func resetDuplicateBlocksOnFileSys() {
 	defer logging.Recover()
 
-	autoFixLock.Lock()
-	defer autoFixLock.Unlock()
-
 	util.PushStatusBar(fmt.Sprintf(Conf.Language(58), 2, 5))
 	boxes := Conf.GetBoxes()
 	luteEngine := lute.New()
@@ -291,9 +279,6 @@ func recreateTree(tree *parse.Tree, absPath string) {
 func fixBlockTreeByFileSys() {
 	defer logging.Recover()
 
-	autoFixLock.Lock()
-	defer autoFixLock.Unlock()
-
 	util.PushStatusBar(fmt.Sprintf(Conf.Language(58), 3, 5))
 	boxes := Conf.GetOpenedBoxes()
 	luteEngine := lute.New()