diff --git a/kernel/model/import.go b/kernel/model/import.go
index e2a207795..2edcd3be4 100644
--- a/kernel/model/import.go
+++ b/kernel/model/import.go
@@ -321,6 +321,7 @@ func ImportSY(zipPath, boxID, toPath string) (err error) {
 		}
 	}
 
+	// 将包含的资源文件统一移动到 data/assets/ 下
 	var assetsDirs []string
 	filepath.Walk(unzipRootPath, func(path string, info fs.FileInfo, err error) error {
 		if strings.Contains(path, "assets") && info.IsDir() {
@@ -328,9 +329,9 @@ func ImportSY(zipPath, boxID, toPath string) (err error) {
 		}
 		return nil
 	})
+	dataAssets := filepath.Join(util.DataDir, "assets")
 	for _, assets := range assetsDirs {
 		if gulu.File.IsDir(assets) {
-			dataAssets := filepath.Join(util.DataDir, "assets")
 			if err = filelock.Copy(assets, dataAssets); nil != err {
 				logging.LogErrorf("copy assets from [%s] to [%s] failed: %s", assets, dataAssets, err)
 				return
@@ -356,14 +357,47 @@ func ImportSY(zipPath, boxID, toPath string) (err error) {
 		return
 	}
 
+	var treePaths []string
+	filepath.Walk(unzipRootPath, func(path string, info fs.FileInfo, err error) error {
+		if info.IsDir() {
+			if strings.HasPrefix(info.Name(), ".") {
+				return filepath.SkipDir
+			}
+			return nil
+		}
+
+		if !strings.HasSuffix(info.Name(), ".sy") {
+			return nil
+		}
+
+		p := strings.TrimPrefix(path, unzipRootPath)
+		p = filepath.ToSlash(p)
+		treePaths = append(treePaths, p)
+		return nil
+	})
+
 	if err = filelock.RoboCopy(unzipRootPath, targetDir); nil != err {
 		logging.LogErrorf("copy data dir from [%s] to [%s] failed: %s", unzipRootPath, util.DataDir, err)
 		err = errors.New("copy data failed")
 		return
 	}
 
+	boxAbsPath := filepath.Join(util.DataDir, boxID)
+	for _, treePath := range treePaths {
+		absPath := filepath.Join(targetDir, treePath)
+		p := strings.TrimPrefix(absPath, boxAbsPath)
+		p = filepath.ToSlash(p)
+		tree, err := LoadTree(boxID, p)
+		if nil != err {
+			logging.LogErrorf("load tree [%s] failed: %s", treePath, err)
+			continue
+		}
+
+		treenode.IndexBlockTree(tree)
+		sql.UpsertTreeQueue(tree)
+	}
+
 	IncSync()
-	FullReindex()
 	return
 }
 
diff --git a/kernel/model/ocr.go b/kernel/model/ocr.go
index fa971bc93..bbd15a27d 100644
--- a/kernel/model/ocr.go
+++ b/kernel/model/ocr.go
@@ -93,8 +93,7 @@ func getUnOCRAssetsAbsPaths() (ret []string) {
 	var assetsPaths []string
 	assets := cache.GetAssets()
 	for _, asset := range assets {
-		lowerName := strings.ToLower(asset.Path)
-		if !strings.HasSuffix(lowerName, ".png") && !strings.HasSuffix(lowerName, ".jpg") && !strings.HasSuffix(lowerName, ".jpeg") {
+		if !util.IsTesseractExtractable(asset.Path) {
 			continue
 		}
 		assetsPaths = append(assetsPaths, asset.Path)
diff --git a/kernel/model/tree.go b/kernel/model/tree.go
index 35b1a9f2f..e80c43316 100644
--- a/kernel/model/tree.go
+++ b/kernel/model/tree.go
@@ -103,8 +103,11 @@ func pagedPaths(localPath string, pageSize int) (ret map[int][]string) {
 	ret = map[int][]string{}
 	page := 1
 	filepath.Walk(localPath, func(path string, info fs.FileInfo, err error) error {
-		if info.IsDir() && strings.HasPrefix(info.Name(), ".") {
-			return filepath.SkipDir
+		if info.IsDir() {
+			if strings.HasPrefix(info.Name(), ".") {
+				return filepath.SkipDir
+			}
+			return nil
 		}
 
 		if !strings.HasSuffix(info.Name(), ".sy") {
diff --git a/kernel/util/tesseract.go b/kernel/util/tesseract.go
index 04780bd83..3f433635e 100644
--- a/kernel/util/tesseract.go
+++ b/kernel/util/tesseract.go
@@ -59,11 +59,20 @@ func GetAssetText(asset string) string {
 	return ret
 }
 
+func IsTesseractExtractable(p string) bool {
+	lowerName := strings.ToLower(p)
+	return strings.HasSuffix(lowerName, ".png") || strings.HasSuffix(lowerName, ".jpg") || strings.HasSuffix(lowerName, ".jpeg")
+}
+
 func Tesseract(imgAbsPath string) string {
 	if ContainerStd != Container || !TesseractEnabled {
 		return ""
 	}
 
+	if !IsTesseractExtractable(imgAbsPath) {
+		return ""
+	}
+
 	info, err := os.Stat(imgAbsPath)
 	if nil != err {
 		return ""