diff --git a/kernel/api/block.go b/kernel/api/block.go
index 13269d5dd..71d0a54e6 100644
--- a/kernel/api/block.go
+++ b/kernel/api/block.go
@@ -154,19 +154,7 @@ func checkBlockFold(c *gin.Context) {
 	}
 
 	id := arg["id"].(string)
-	b, err := model.GetBlock(id, nil)
-	if errors.Is(err, filelock.ErrUnableAccessFile) {
-		ret.Code = 2
-		ret.Data = id
-		return
-	}
-	if errors.Is(err, model.ErrIndexing) {
-		ret.Code = 0
-		ret.Data = false
-		return
-	}
-
-	ret.Data = nil != b && "1" == b.IAL["fold"]
+	ret.Data = model.IsBlockFolded(id)
 }
 
 func checkBlockExist(c *gin.Context) {
diff --git a/kernel/model/block.go b/kernel/model/block.go
index d0775aeb7..b9b51f668 100644
--- a/kernel/model/block.go
+++ b/kernel/model/block.go
@@ -87,6 +87,22 @@ type Path struct {
 	Created string `json:"created"` // 创建时间
 }
 
+func IsBlockFolded(id string) bool {
+	for i := 0; i < 32; i++ {
+		b, _ := getBlock(id, nil)
+		if nil == b {
+			return true
+		}
+
+		if "1" == b.IAL["fold"] {
+			return true
+		}
+
+		id = b.ParentID
+	}
+	return false
+}
+
 func RecentUpdatedBlocks() (ret []*Block) {
 	ret = []*Block{}