diff --git a/kernel/model/search.go b/kernel/model/search.go
index 88490ffdc..e5cb90c54 100644
--- a/kernel/model/search.go
+++ b/kernel/model/search.go
@@ -328,6 +328,7 @@ func SearchRefBlock(id, rootID, keyword string, beforeLen int, isSquareBrackets,
 		for _, ref := range refs {
 			btsID = append(btsID, ref.DefBlockRootID)
 		}
+		btsID = gulu.Str.RemoveDuplicatedElem(btsID)
 		bts := treenode.GetBlockTrees(btsID)
 		for _, ref := range refs {
 			tree := cachedTrees[ref.DefBlockRootID]
@@ -369,6 +370,7 @@ func SearchRefBlock(id, rootID, keyword string, beforeLen int, isSquareBrackets,
 	for _, b := range ret {
 		btsID = append(btsID, b.RootID)
 	}
+	btsID = gulu.Str.RemoveDuplicatedElem(btsID)
 	bts := treenode.GetBlockTrees(btsID)
 	for _, b := range ret {
 		tree := cachedTrees[b.RootID]
@@ -899,11 +901,17 @@ func FullTextSearchBlock(query string, boxes, paths []string, types map[string]b
 		rootMap := map[string]bool{}
 		var rootIDs []string
 		contentSorts := map[string]int{}
+		var btsID []string
+		for _, b := range blocks {
+			btsID = append(btsID, b.RootID)
+		}
+		btsID = gulu.Str.RemoveDuplicatedElem(btsID)
+		bts := treenode.GetBlockTrees(btsID)
 		for _, b := range blocks {
 			if _, ok := rootMap[b.RootID]; !ok {
 				rootMap[b.RootID] = true
 				rootIDs = append(rootIDs, b.RootID)
-				tree, _ := LoadTreeByBlockID(b.RootID)
+				tree, _ := loadTreeByBlockTree(bts[b.RootID])
 				if nil == tree {
 					continue
 				}