diff --git a/backend/internal/modules/chat/conversation_test.go b/backend/internal/modules/chat/conversation_test.go
index 237c147..854adb4 100644
--- a/backend/internal/modules/chat/conversation_test.go
+++ b/backend/internal/modules/chat/conversation_test.go
@@ -33,7 +33,7 @@ func setupConversationTestDB(t *testing.T) *gorm.DB {
 
 func TestFindOrderConversationPrefersListingGroup(t *testing.T) {
 	db := setupConversationTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	now := time.Date(2026, 6, 18, 12, 0, 0, 0, time.UTC)
 
 	owner := model.User{Phone: "13800001001", Nickname: "号主"}
@@ -96,7 +96,7 @@ func TestFindOrderConversationPrefersListingGroup(t *testing.T) {
 
 func TestFindOrderConversationFallsBackToOrderGroup(t *testing.T) {
 	db := setupConversationTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	now := time.Date(2026, 6, 18, 12, 0, 0, 0, time.UTC)
 
 	owner := model.User{Phone: "13800001003", Nickname: "号主"}
diff --git a/backend/internal/modules/chat/handler_qrcode.go b/backend/internal/modules/chat/handler_qrcode.go
index 259a01b..91efb5d 100644
--- a/backend/internal/modules/chat/handler_qrcode.go
+++ b/backend/internal/modules/chat/handler_qrcode.go
@@ -96,7 +96,7 @@ func (h *Handler) GetQrCodeStatsHandler(c *gin.Context) {
 	c.JSON(http.StatusOK, gin.H{"data": stats})
 }
 
-// RecognizeQrCodeGroupNameHandler 调用 PaddleOCR API 识别二维码图片中的企业微信群名
+// RecognizeQrCodeGroupNameHandler 同步调用 PaddleOCR API 识别二维码图片中的企业微信群名（保留向后兼容）
 func (h *Handler) RecognizeQrCodeGroupNameHandler(c *gin.Context) {
 	file, header, err := c.Request.FormFile("file")
 	if err != nil {
@@ -131,6 +131,70 @@ func (h *Handler) RecognizeQrCodeGroupNameHandler(c *gin.Context) {
 	c.JSON(http.StatusOK, gin.H{"data": result})
 }
 
+// SubmitOCRJobHandler 提交 OCR 任务到 PaddleOCR，立即返回任务 ID
+func (h *Handler) SubmitOCRJobHandler(c *gin.Context) {
+	file, header, err := c.Request.FormFile("file")
+	if err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "请上传二维码图片"})
+		return
+	}
+	defer file.Close()
+
+	jobID, err := h.service.repo.SubmitOCRJob(
+		c.Request.Context(),
+		header.Filename,
+		header.Header.Get("Content-Type"),
+		file,
+	)
+	if err != nil {
+		if errors.Is(err, ErrQrCodeOCRNotConfigured) {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "请先在系统配置中填写 PaddleOCR API Token"})
+			return
+		}
+		if errors.Is(err, ErrQrCodeOCRInvalidFile) {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "无效的二维码图片"})
+			return
+		}
+		if errors.Is(err, ErrQrCodeOCRUnavailable) {
+			c.JSON(http.StatusBadGateway, gin.H{"error": "PaddleOCR 服务暂时不可用"})
+			return
+		}
+		if errors.Is(err, ErrQrCodeOCRRedisDisabled) {
+			c.JSON(http.StatusServiceUnavailable, gin.H{"error": "OCR 异步模式需要 Redis"})
+			return
+		}
+		if errors.Is(err, ErrQrCodeOCRJobNotFound) {
+			c.JSON(http.StatusNotFound, gin.H{"error": "OCR 任务不存在或已过期"})
+			return
+		}
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"data": gin.H{"job_id": jobID}})
+}
+
+// GetOCRJobResultHandler 查询异步 OCR 任务状态和结果
+func (h *Handler) GetOCRJobResultHandler(c *gin.Context) {
+	jobID := c.Param("jobId")
+	if jobID == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "缺少任务 ID"})
+		return
+	}
+
+	record, err := h.service.repo.PollOCRJobResult(c.Request.Context(), jobID)
+	if err != nil {
+		if errors.Is(err, ErrQrCodeOCRJobNotFound) {
+			c.JSON(http.StatusNotFound, gin.H{"error": "OCR 任务不存在或已过期"})
+			return
+		}
+		c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+		return
+	}
+
+	c.JSON(http.StatusOK, gin.H{"data": record})
+}
+
 // UpdateQrCodeHandler 更新二维码
 func (h *Handler) UpdateQrCodeHandler(c *gin.Context) {
 	id, err := strconv.ParseUint(c.Param("id"), 10, 64)
diff --git a/backend/internal/modules/chat/qrcode_ocr.go b/backend/internal/modules/chat/qrcode_ocr.go
index 008b300..0d5e728 100644
--- a/backend/internal/modules/chat/qrcode_ocr.go
+++ b/backend/internal/modules/chat/qrcode_ocr.go
@@ -15,18 +15,30 @@ import (
 	"strings"
 	"time"
 	"unicode/utf8"
+
+	"github.com/google/uuid"
 )
 
 const (
-	maxQrCodeOCRFileSize  = 10 * 1024 * 1024
-	qrCodeOCRPollInterval = 2 * time.Second
-	qrCodeOCRMaxPollTimes = 45
+	maxQrCodeOCRFileSize = 10 * 1024 * 1024
+
+	ocrJobRedisKeyPrefix = "ocr:job:"
+	ocrJobRedisTTL       = 10 * time.Minute
+
+	ocrJobStatusSubmitted = "submitted"
+	ocrJobStatusRunning   = "running"
+	ocrJobStatusDone      = "done"
+	ocrJobStatusFailed    = "failed"
 )
 
 var (
 	ErrQrCodeOCRNotConfigured = errors.New("二维码 OCR Token 未配置")
 	ErrQrCodeOCRInvalidFile   = errors.New("无效的二维码图片")
 	ErrQrCodeOCRUnavailable   = errors.New("二维码 OCR 服务不可用")
+	ErrQrCodeOCRJobNotFound   = errors.New("OCR 任务不存在或已过期")
+	ErrQrCodeOCRRedisDisabled = errors.New("OCR 异步模式需要 Redis")
+
+	ocrHTTPClient = &http.Client{Timeout: 30 * time.Second}
 )
 
 type QrCodeOCRResult struct {
@@ -35,6 +47,13 @@ type QrCodeOCRResult struct {
 	RawText    string   `json:"raw_text"`
 }
 
+type OCRJobRecord struct {
+	PaddleJobID string           `json:"paddle_job_id"`
+	Status      string           `json:"status"`
+	Result      *QrCodeOCRResult `json:"result,omitempty"`
+	Error       string           `json:"error,omitempty"`
+}
+
 type paddleOCRJobResponse struct {
 	Data struct {
 		JobID string `json:"jobId"`
@@ -55,7 +74,51 @@ type paddleOCRJobStatusResponse struct {
 	Error   string `json:"error"`
 }
 
-// RecognizeQrCodeGroupName 调用 PaddleOCR 异步 API 识别二维码图片中的群名。
+func readAndValidateOCRFile(reader io.Reader, contentType string) ([]byte, string, error) {
+	data, err := io.ReadAll(io.LimitReader(reader, maxQrCodeOCRFileSize+1))
+	if err != nil || len(data) == 0 || len(data) > maxQrCodeOCRFileSize {
+		return nil, "", ErrQrCodeOCRInvalidFile
+	}
+	if contentType == "" {
+		contentType = http.DetectContentType(data)
+	}
+	if !strings.HasPrefix(contentType, "image/") {
+		return nil, "", ErrQrCodeOCRInvalidFile
+	}
+	return data, contentType, nil
+}
+
+func ocrJobKey(jobID string) string {
+	return ocrJobRedisKeyPrefix + jobID
+}
+
+func (r *Repository) saveOCRJobRecord(ctx context.Context, jobID string, record *OCRJobRecord) error {
+	if r.redis == nil {
+		return ErrQrCodeOCRRedisDisabled
+	}
+	raw, err := json.Marshal(record)
+	if err != nil {
+		return err
+	}
+	return r.redis.Set(ctx, ocrJobKey(jobID), string(raw), ocrJobRedisTTL).Err()
+}
+
+func (r *Repository) getOCRJobRecord(ctx context.Context, jobID string) (*OCRJobRecord, error) {
+	if r.redis == nil {
+		return nil, ErrQrCodeOCRRedisDisabled
+	}
+	raw, err := r.redis.Get(ctx, ocrJobKey(jobID)).Result()
+	if err != nil {
+		return nil, ErrQrCodeOCRJobNotFound
+	}
+	var record OCRJobRecord
+	if err := json.Unmarshal([]byte(raw), &record); err != nil {
+		return nil, err
+	}
+	return &record, nil
+}
+
+// RecognizeQrCodeGroupName 同步调用 PaddleOCR 识别二维码图片中的群名（保留向后兼容）。
 func (r *Repository) RecognizeQrCodeGroupName(ctx context.Context, filename, contentType string, reader io.Reader) (*QrCodeOCRResult, error) {
 	config, err := r.GetQrCodeOCRConfig(ctx)
 	if err != nil {
@@ -64,22 +127,16 @@ func (r *Repository) RecognizeQrCodeGroupName(ctx context.Context, filename, con
 	if strings.TrimSpace(config.Token) == "" {
 		return nil, ErrQrCodeOCRNotConfigured
 	}
-	data, err := io.ReadAll(io.LimitReader(reader, maxQrCodeOCRFileSize+1))
-	if err != nil || len(data) == 0 || len(data) > maxQrCodeOCRFileSize {
-		return nil, ErrQrCodeOCRInvalidFile
-	}
-	if contentType == "" {
-		contentType = http.DetectContentType(data)
-	}
-	if !strings.HasPrefix(contentType, "image/") {
-		return nil, ErrQrCodeOCRInvalidFile
-	}
-
-	jobID, err := submitPaddleOCRJob(ctx, config, filename, contentType, data)
+	data, contentType, err := readAndValidateOCRFile(reader, contentType)
 	if err != nil {
 		return nil, err
 	}
-	jsonURL, err := waitPaddleOCRJob(ctx, config, jobID)
+
+	paddleJobID, err := submitPaddleOCRJob(ctx, config, filename, contentType, data)
+	if err != nil {
+		return nil, err
+	}
+	jsonURL, err := waitPaddleOCRJob(ctx, config, paddleJobID)
 	if err != nil {
 		return nil, err
 	}
@@ -99,6 +156,127 @@ func (r *Repository) RecognizeQrCodeGroupName(ctx context.Context, filename, con
 	}, nil
 }
 
+// SubmitOCRJob 提交 OCR 任务到 PaddleOCR，立即返回任务 ID 供前端轮询。
+func (r *Repository) SubmitOCRJob(ctx context.Context, filename, contentType string, reader io.Reader) (string, error) {
+	if r.redis == nil {
+		return "", ErrQrCodeOCRRedisDisabled
+	}
+	config, err := r.GetQrCodeOCRConfig(ctx)
+	if err != nil {
+		return "", err
+	}
+	if strings.TrimSpace(config.Token) == "" {
+		return "", ErrQrCodeOCRNotConfigured
+	}
+	data, contentType, err := readAndValidateOCRFile(reader, contentType)
+	if err != nil {
+		return "", err
+	}
+
+	paddleJobID, err := submitPaddleOCRJob(ctx, config, filename, contentType, data)
+	if err != nil {
+		return "", err
+	}
+
+	jobID := uuid.NewString()
+	record := &OCRJobRecord{
+		PaddleJobID: paddleJobID,
+		Status:      ocrJobStatusSubmitted,
+	}
+	if err := r.saveOCRJobRecord(ctx, jobID, record); err != nil {
+		return "", err
+	}
+	return jobID, nil
+}
+
+// PollOCRJobResult 轮询 OCR 任务状态，每次调用向 PaddleOCR 查询一次并更新缓存。
+func (r *Repository) PollOCRJobResult(ctx context.Context, jobID string) (*OCRJobRecord, error) {
+	record, err := r.getOCRJobRecord(ctx, jobID)
+	if err != nil {
+		return nil, err
+	}
+
+	if record.Status == ocrJobStatusDone || record.Status == ocrJobStatusFailed {
+		return record, nil
+	}
+
+	config, err := r.GetQrCodeOCRConfig(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	statusURL := strings.TrimRight(config.JobURL, "/") + "/" + record.PaddleJobID
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, statusURL, nil)
+	if err != nil {
+		return nil, fmt.Errorf("%w: %v", ErrQrCodeOCRUnavailable, err)
+	}
+	req.Header.Set("Authorization", "bearer "+config.Token)
+
+	resp, err := ocrHTTPClient.Do(req)
+	if err != nil {
+		// 网络错误不更新 Redis，保留当前状态让前端重试
+		return record, nil
+	}
+	respBody, _ := io.ReadAll(io.LimitReader(resp.Body, 2*1024*1024))
+	resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return record, nil
+	}
+
+	var statusPayload paddleOCRJobStatusResponse
+	if err := json.Unmarshal(respBody, &statusPayload); err != nil {
+		return record, nil
+	}
+
+	switch statusPayload.Data.State {
+	case "pending", "running":
+		record.Status = ocrJobStatusRunning
+		_ = r.saveOCRJobRecord(ctx, jobID, record)
+		return record, nil
+
+	case "done":
+		if statusPayload.Data.ResultURL.JSONURL == "" {
+			record.Status = ocrJobStatusFailed
+			record.Error = "未返回识别结果地址"
+			_ = r.saveOCRJobRecord(ctx, jobID, record)
+			return record, nil
+		}
+		rawText, err := fetchPaddleOCRText(ctx, statusPayload.Data.ResultURL.JSONURL)
+		if err != nil {
+			record.Status = ocrJobStatusFailed
+			record.Error = err.Error()
+			_ = r.saveOCRJobRecord(ctx, jobID, record)
+			return record, nil
+		}
+		candidates := parseQrCodeGroupNameCandidates(rawText)
+		groupName := ""
+		if len(candidates) > 0 {
+			groupName = candidates[0]
+		}
+		record.Status = ocrJobStatusDone
+		record.Result = &QrCodeOCRResult{
+			GroupName:  groupName,
+			Candidates: candidates,
+			RawText:    rawText,
+		}
+		_ = r.saveOCRJobRecord(ctx, jobID, record)
+		return record, nil
+
+	case "failed":
+		record.Status = ocrJobStatusFailed
+		if statusPayload.Data.ErrorMsg != "" {
+			record.Error = statusPayload.Data.ErrorMsg
+		} else {
+			record.Error = "PaddleOCR 识别失败"
+		}
+		_ = r.saveOCRJobRecord(ctx, jobID, record)
+		return record, nil
+	}
+
+	return record, nil
+}
+
 func submitPaddleOCRJob(ctx context.Context, config *QrCodeOCRConfig, filename, contentType string, data []byte) (string, error) {
 	body := &bytes.Buffer{}
 	writer := multipart.NewWriter(body)
@@ -130,7 +308,7 @@ func submitPaddleOCRJob(ctx context.Context, config *QrCodeOCRConfig, filename,
 	req.Header.Set("Authorization", "bearer "+config.Token)
 	req.Header.Set("Content-Type", writer.FormDataContentType())
 
-	resp, err := http.DefaultClient.Do(req)
+	resp, err := ocrHTTPClient.Do(req)
 	if err != nil {
 		return "", fmt.Errorf("%w: %v", ErrQrCodeOCRUnavailable, err)
 	}
@@ -150,13 +328,13 @@ func submitPaddleOCRJob(ctx context.Context, config *QrCodeOCRConfig, filename,
 }
 
 func waitPaddleOCRJob(ctx context.Context, config *QrCodeOCRConfig, jobID string) (string, error) {
-	for i := 0; i < qrCodeOCRMaxPollTimes; i++ {
+	for i := 0; i < 12; i++ {
 		req, err := http.NewRequestWithContext(ctx, http.MethodGet, strings.TrimRight(config.JobURL, "/")+"/"+jobID, nil)
 		if err != nil {
 			return "", fmt.Errorf("%w: %v", ErrQrCodeOCRUnavailable, err)
 		}
 		req.Header.Set("Authorization", "bearer "+config.Token)
-		resp, err := http.DefaultClient.Do(req)
+		resp, err := ocrHTTPClient.Do(req)
 		if err != nil {
 			return "", fmt.Errorf("%w: %v", ErrQrCodeOCRUnavailable, err)
 		}
@@ -183,8 +361,8 @@ func waitPaddleOCRJob(ctx context.Context, config *QrCodeOCRConfig, jobID string
 		}
 		select {
 		case <-ctx.Done():
-			return "", ctx.Err()
-		case <-time.After(qrCodeOCRPollInterval):
+			return "", fmt.Errorf("%w: %v", ErrQrCodeOCRUnavailable, ctx.Err())
+		case <-time.After(2 * time.Second):
 		}
 	}
 	return "", fmt.Errorf("%w: 识别超时", ErrQrCodeOCRUnavailable)
@@ -195,7 +373,7 @@ func fetchPaddleOCRText(ctx context.Context, jsonURL string) (string, error) {
 	if err != nil {
 		return "", fmt.Errorf("%w: %v", ErrQrCodeOCRUnavailable, err)
 	}
-	resp, err := http.DefaultClient.Do(req)
+	resp, err := ocrHTTPClient.Do(req)
 	if err != nil {
 		return "", fmt.Errorf("%w: %v", ErrQrCodeOCRUnavailable, err)
 	}
diff --git a/backend/internal/modules/chat/qrcode_test.go b/backend/internal/modules/chat/qrcode_test.go
index a04199c..ce7e065 100644
--- a/backend/internal/modules/chat/qrcode_test.go
+++ b/backend/internal/modules/chat/qrcode_test.go
@@ -41,7 +41,7 @@ func setupQrCodeTestDB(t *testing.T) *gorm.DB {
 
 func TestGetQrCodeOCRConfigReadsSystemConfig(t *testing.T) {
 	db := setupQrCodeTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	rows := []model.SystemConfig{
 		{Key: qrCodeOCRTokenConfigKey, Value: "test-token"},
 		{Key: qrCodeOCRJobURLConfigKey, Value: "https://example.test/ocr/jobs"},
@@ -68,7 +68,7 @@ func TestGetQrCodeOCRConfigReadsSystemConfig(t *testing.T) {
 
 func TestListQrCodesIncludesBoundConversationTitle(t *testing.T) {
 	db := setupQrCodeTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	conversation := model.ChatConversation{
 		Title:  "账号群 L202606180001",
 		Type:   ConversationTypeListingGroup,
@@ -106,7 +106,7 @@ func TestListQrCodesIncludesBoundConversationTitle(t *testing.T) {
 
 func TestListQrCodesFilters(t *testing.T) {
 	db := setupQrCodeTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	now := time.Now()
 	expiredAt := now.Add(-time.Hour)
 	validAt := now.Add(7 * 24 * time.Hour)
@@ -218,7 +218,7 @@ func TestParseQrCodeGroupNameCandidates(t *testing.T) {
 
 func TestUpdateQrCodeRejectsUsedToUnused(t *testing.T) {
 	db := setupQrCodeTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	now := time.Date(2026, 6, 18, 12, 0, 0, 0, time.UTC)
 	conversationID := uint64(1001)
 	qrcode := model.ChatQrCode{
@@ -249,7 +249,7 @@ func TestUpdateQrCodeRejectsUsedToUnused(t *testing.T) {
 
 func TestUpdateQrCodeRejectsIssuedDisabledToUnused(t *testing.T) {
 	db := setupQrCodeTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	conversationID := uint64(1002)
 	qrcode := model.ChatQrCode{
 		ImageURL:       "/api/files/object?key=qrcode/disabled.png",
@@ -270,7 +270,7 @@ func TestUpdateQrCodeRejectsIssuedDisabledToUnused(t *testing.T) {
 
 func TestUpdateQrCodeAllowsUnusedToDisabled(t *testing.T) {
 	db := setupQrCodeTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	qrcode := model.ChatQrCode{
 		ImageURL:  "/api/files/object?key=qrcode/unused.png",
 		Status:    QrCodeStatusUnused,
@@ -296,7 +296,7 @@ func TestUpdateQrCodeAllowsUnusedToDisabled(t *testing.T) {
 
 func TestUpdateQrCodeGroupNameAndRenameFlag(t *testing.T) {
 	db := setupQrCodeTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	qrcode := model.ChatQrCode{
 		ImageURL:  "/api/files/object?key=qrcode/unused.png",
 		Status:    QrCodeStatusUnused,
@@ -329,7 +329,7 @@ func TestUpdateQrCodeGroupNameAndRenameFlag(t *testing.T) {
 
 func TestDeleteQrCodeAllowsIssuedQrCode(t *testing.T) {
 	db := setupQrCodeTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	now := time.Date(2026, 6, 19, 17, 8, 0, 0, time.UTC)
 	conversationID := uint64(1003)
 	qrcode := model.ChatQrCode{
@@ -358,7 +358,7 @@ func TestDeleteQrCodeAllowsIssuedQrCode(t *testing.T) {
 
 func TestBatchDeleteQrCodes(t *testing.T) {
 	db := setupQrCodeTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	now := time.Date(2026, 6, 19, 17, 8, 0, 0, time.UTC)
 	conversationID := uint64(1004)
 	qrcodes := []model.ChatQrCode{
@@ -427,7 +427,7 @@ func TestEnsureListingConversationCreatesQrCodeDeliveryTaskWhenStockEmpty(t *tes
 
 func TestBatchCreateQrCodeDeliversPendingTask(t *testing.T) {
 	db := setupQrCodeTestDB(t)
-	repo := NewRepository(db, nil)
+	repo := NewRepository(db, nil, nil)
 	conversation := model.ChatConversation{
 		Title:  "账号群 L202606260002",
 		Type:   ConversationTypeListingGroup,
diff --git a/backend/internal/modules/chat/repository.go b/backend/internal/modules/chat/repository.go
index 21d73e1..79bff37 100644
--- a/backend/internal/modules/chat/repository.go
+++ b/backend/internal/modules/chat/repository.go
@@ -2,6 +2,7 @@ package chat
 
 import (
 	"errors"
+	"github.com/redis/go-redis/v9"
 	"gorm.io/gorm"
 	"gorm.io/gorm/clause"
 	"hfb_sys/backend/internal/model"
@@ -10,16 +11,17 @@ import (
 )
 
 type Repository struct {
-	db  *gorm.DB
-	hub *chathub.Hub
+	db    *gorm.DB
+	hub   *chathub.Hub
+	redis *redis.Client
 }
 
 const (
 	defaultSupportRoleCode = "cs"
 )
 
-func NewRepository(db *gorm.DB, hub *chathub.Hub) *Repository {
-	return &Repository{db: db, hub: hub}
+func NewRepository(db *gorm.DB, hub *chathub.Hub, redis *redis.Client) *Repository {
+	return &Repository{db: db, hub: hub, redis: redis}
 }
 func EnsureOrderConversation(tx *gorm.DB, order model.RentalOrder) (*model.ChatConversation, error) {
 	var existing model.ChatConversation
diff --git a/backend/internal/router/router.go b/backend/internal/router/router.go
index a87d222..7823ce7 100644
--- a/backend/internal/router/router.go
+++ b/backend/internal/router/router.go
@@ -173,7 +173,7 @@ func New(cfg config.Config, deps Dependencies, logger *zap.Logger) *gin.Engine {
 	}
 	var chatRepo *chat.Repository
 	if deps.DB != nil {
-		chatRepo = chat.NewRepository(deps.DB, chatHub)
+		chatRepo = chat.NewRepository(deps.DB, chatHub, deps.Redis)
 	}
 
 	// 创建 chat 适配器用于 listing
@@ -598,6 +598,8 @@ func New(cfg config.Config, deps Dependencies, logger *zap.Logger) *gin.Engine {
 			adminRoutes.GET("/chats/qrcodes", requirePerm("qrcode:view"), chatHandler.ListQrCodesHandler)
 			adminRoutes.GET("/chats/qrcodes/stats", requirePerm("qrcode:view"), chatHandler.GetQrCodeStatsHandler)
 			adminRoutes.POST("/chats/qrcodes/ocr-group-name", requirePerm("qrcode:manage"), chatHandler.RecognizeQrCodeGroupNameHandler)
+			adminRoutes.POST("/chats/qrcodes/ocr-group-name/async", requirePerm("qrcode:manage"), chatHandler.SubmitOCRJobHandler)
+			adminRoutes.GET("/chats/qrcodes/ocr-group-name/async/:jobId", requirePerm("qrcode:manage"), chatHandler.GetOCRJobResultHandler)
 			adminRoutes.PATCH("/chats/qrcodes/:id", requirePerm("qrcode:manage"), chatHandler.UpdateQrCodeHandler)
 			adminRoutes.DELETE("/chats/qrcodes/:id", requirePerm("qrcode:manage"), chatHandler.DeleteQrCodeHandler)
 
diff --git a/frontend/src/features/admin/api/adminQrCodes.ts b/frontend/src/features/admin/api/adminQrCodes.ts
index 7e0e3d7..da6494b 100644
--- a/frontend/src/features/admin/api/adminQrCodes.ts
+++ b/frontend/src/features/admin/api/adminQrCodes.ts
@@ -34,6 +34,13 @@ export interface QrCodeOcrResult {
   raw_text: string
 }
 
+export interface OCRJobRecord {
+  paddle_job_id: string
+  status: 'submitted' | 'running' | 'done' | 'failed'
+  result: QrCodeOcrResult | null
+  error: string
+}
+
 export interface QrCodeListQuery {
   status?: QrCodeStatus
   keyword?: string
@@ -121,6 +128,28 @@ export async function recognizeQrCodeGroupName(file: File) {
   return data.data
 }
 
+export async function submitOCRJob(file: File) {
+  const form = new FormData()
+  form.append('file', file)
+  const { data } = await apiClient.post<ApiResponse<{ job_id: string }>>(
+    '/admin/chats/qrcodes/ocr-group-name/async',
+    form,
+    {
+      headers: { 'Content-Type': 'multipart/form-data' },
+      silent: true,
+    }
+  )
+  return data.data
+}
+
+export async function getOCRJobResult(jobId: string) {
+  const { data } = await apiClient.get<ApiResponse<OCRJobRecord>>(
+    `/admin/chats/qrcodes/ocr-group-name/async/${jobId}`,
+    { silent: true }
+  )
+  return data.data
+}
+
 export async function updateQrCode(id: number, payload: UpdateQrCodePayload) {
   const { data } = await apiClient.patch<ApiResponse<ChatQrCode>>(
     `/admin/chats/qrcodes/${id}`,
diff --git a/frontend/src/features/admin/views/AdminQrCodePoolView.vue b/frontend/src/features/admin/views/AdminQrCodePoolView.vue
index 0b01599..2a104aa 100644
--- a/frontend/src/features/admin/views/AdminQrCodePoolView.vue
+++ b/frontend/src/features/admin/views/AdminQrCodePoolView.vue
@@ -17,7 +17,8 @@ import {
   deleteQrCode,
   fetchQrCodeStats,
   fetchQrCodes,
-  recognizeQrCodeGroupName,
+  getOCRJobResult,
+  submitOCRJob,
   updateQrCode,
   type ChatQrCode,
   type CreateQrCodePayload,
@@ -230,8 +231,19 @@ function parseGroupNameFromOcrText(text: string) {
 }
 
 async function recognizeGroupName(file: File) {
-  const result = await recognizeQrCodeGroupName(file)
-  return result.group_name || parseGroupNameFromOcrText(result.raw_text || '')
+  const { job_id } = await submitOCRJob(file)
+  const delays = [1000, 2000, 3000, 3000, 3000]
+  for (let i = 0; i < delays.length; i++) {
+    await new Promise(resolve => setTimeout(resolve, delays[i]))
+    const record = await getOCRJobResult(job_id)
+    if (record.status === 'done' && record.result) {
+      return record.result.group_name || parseGroupNameFromOcrText(record.result.raw_text || '')
+    }
+    if (record.status === 'failed') {
+      throw new Error(record.error || 'OCR 识别失败')
+    }
+  }
+  throw new Error('OCR 识别超时')
 }
 
 // 上传：逐个上传图片拿 URL