diff --git a/kernel/model/transaction.go b/kernel/model/transaction.go
index 60866ef1c..066d71864 100644
--- a/kernel/model/transaction.go
+++ b/kernel/model/transaction.go
@@ -1255,6 +1255,12 @@ func autoFixIndex() {
 		})
 
 		size := len(paths)
+
+		redundantPaths := treenode.GetRedundantPaths(box.ID, paths)
+		for _, p := range redundantPaths {
+			treenode.RemoveBlockTreesByPath(p)
+		}
+
 		missingPaths := treenode.GetNotExistPaths(box.ID, paths)
 		for i, p := range missingPaths {
 			reindexTreeByPath(box.ID, p, i, size)
diff --git a/kernel/treenode/blocktree.go b/kernel/treenode/blocktree.go
index d1a26f2f5..508f34d22 100644
--- a/kernel/treenode/blocktree.go
+++ b/kernel/treenode/blocktree.go
@@ -116,6 +116,31 @@ func CeilBlockCount(count int) int {
 	return 10000*100 + 1
 }
 
+func GetRedundantPaths(boxID string, paths []string) (ret []string) {
+	pathsMap := map[string]bool{}
+	for _, path := range paths {
+		pathsMap[path] = true
+	}
+
+	tmp := blockTrees
+	btPathsMap := map[string]bool{}
+	for _, blockTree := range tmp {
+		if blockTree.BoxID != boxID {
+			continue
+		}
+
+		btPathsMap[blockTree.Path] = true
+	}
+
+	for p, _ := range btPathsMap {
+		if !pathsMap[p] {
+			ret = append(ret, p)
+		}
+	}
+	ret = gulu.Str.RemoveDuplicatedElem(ret)
+	return
+}
+
 func GetNotExistPaths(boxID string, paths []string) (ret []string) {
 	pathsMap := map[string]bool{}
 	for _, path := range paths {
@@ -132,6 +157,7 @@ func GetNotExistPaths(boxID string, paths []string) (ret []string) {
 			ret = append(ret, blockTree.Path)
 		}
 	}
+	ret = gulu.Str.RemoveDuplicatedElem(ret)
 	return
 }
 
@@ -191,6 +217,24 @@ func RemoveBlockTreesByRootID(rootID string) {
 			ids = append(ids, b.RootID)
 		}
 	}
+	ids = gulu.Str.RemoveDuplicatedElem(ids)
+	for _, id := range ids {
+		delete(blockTrees, id)
+	}
+	blockTreesChanged = true
+}
+
+func RemoveBlockTreesByPath(path string) {
+	blockTreesLock.Lock()
+	defer blockTreesLock.Unlock()
+
+	var ids []string
+	for _, b := range blockTrees {
+		if b.Path == path {
+			ids = append(ids, b.ID)
+		}
+	}
+	ids = gulu.Str.RemoveDuplicatedElem(ids)
 	for _, id := range ids {
 		delete(blockTrees, id)
 	}
@@ -207,6 +251,7 @@ func RemoveBlockTreesByPathPrefix(pathPrefix string) {
 			ids = append(ids, b.ID)
 		}
 	}
+	ids = gulu.Str.RemoveDuplicatedElem(ids)
 	for _, id := range ids {
 		delete(blockTrees, id)
 	}
@@ -222,6 +267,7 @@ func RemoveBlockTreesByBoxID(boxID string) (ids []string) {
 			ids = append(ids, b.ID)
 		}
 	}
+	ids = gulu.Str.RemoveDuplicatedElem(ids)
 	for _, id := range ids {
 		delete(blockTrees, id)
 	}
@@ -247,6 +293,7 @@ func ReindexBlockTree(tree *parse.Tree) {
 			ids = append(ids, b.ID)
 		}
 	}
+	ids = gulu.Str.RemoveDuplicatedElem(ids)
 	for _, id := range ids {
 		delete(blockTrees, id)
 	}