diff --git a/kernel/model/ocr.go b/kernel/model/ocr.go
index ef18d8f34..8ebeb4f61 100644
--- a/kernel/model/ocr.go
+++ b/kernel/model/ocr.go
@@ -1,21 +1,18 @@
 package model
 
 import (
-	"github.com/siyuan-note/siyuan/kernel/task"
 	"io"
 	"os"
 	"path/filepath"
-	"runtime"
 	"runtime/debug"
 	"strings"
-	"sync"
 	"time"
 
 	"github.com/88250/gulu"
 	"github.com/dustin/go-humanize"
-	"github.com/panjf2000/ants/v2"
 	"github.com/siyuan-note/logging"
 	"github.com/siyuan-note/siyuan/kernel/cache"
+	"github.com/siyuan-note/siyuan/kernel/task"
 	"github.com/siyuan-note/siyuan/kernel/util"
 )
 
@@ -33,15 +30,7 @@ func autoOCRAssets() {
 	assetsPath := util.GetDataAssetsAbsPath()
 	assets := getUnOCRAssetsAbsPaths()
 	if 0 < len(assets) {
-		poolSize := runtime.NumCPU()
-		if 2 < poolSize {
-			poolSize = 2
-		}
-		waitGroup := &sync.WaitGroup{}
-		p, _ := ants.NewPoolWithFunc(poolSize, func(arg interface{}) {
-			defer waitGroup.Done()
-
-			assetAbsPath := arg.(string)
+		for i, assetAbsPath := range assets {
 			text := util.Tesseract(assetAbsPath)
 			p := strings.TrimPrefix(assetAbsPath, assetsPath)
 			p = "assets" + filepath.ToSlash(p)
@@ -49,19 +38,11 @@ func autoOCRAssets() {
 			util.AssetsTexts[p] = text
 			util.AssetsTextsLock.Unlock()
 			util.AssetsTextsChanged = true
-		})
 
-		for i, assetAbsPath := range assets {
-			waitGroup.Add(1)
-			p.Invoke(assetAbsPath)
-
-			if 63 <= i { // 一次任务中最多处理 64 张图片，防止卡顿
+			if 16 <= i { // 一次任务中最多处理 16 张图片，防止卡顿
 				break
 			}
 		}
-
-		waitGroup.Wait()
-		p.Release()
 	}
 
 	cleanNotExistAssetsTexts()
diff --git a/kernel/util/tesseract.go b/kernel/util/tesseract.go
index be6a1132b..05969fb3b 100644
--- a/kernel/util/tesseract.go
+++ b/kernel/util/tesseract.go
@@ -64,12 +64,17 @@ func IsTesseractExtractable(p string) bool {
 	return strings.HasSuffix(lowerName, ".png") || strings.HasSuffix(lowerName, ".jpg") || strings.HasSuffix(lowerName, ".jpeg")
 }
 
+// tesseractOCRLock 用于 Tesseract OCR 加锁串行执行提升稳定性 https://github.com/siyuan-note/siyuan/issues/7265
+var tesseractOCRLock = sync.Mutex{}
+
 func Tesseract(imgAbsPath string) string {
 	if ContainerStd != Container || !TesseractEnabled {
 		return ""
 	}
 
 	defer logging.Recover()
+	tesseractOCRLock.Lock()
+	defer tesseractOCRLock.Unlock()
 
 	if !IsTesseractExtractable(imgAbsPath) {
 		return ""