diff --git a/internal/logic/public/user/bindEmailWithVerificationLogic.go b/internal/logic/public/user/bindEmailWithVerificationLogic.go
index d79ebc5..b396162 100644
--- a/internal/logic/public/user/bindEmailWithVerificationLogic.go
+++ b/internal/logic/public/user/bindEmailWithVerificationLogic.go
@@ -200,7 +200,7 @@ func (l *BindEmailWithVerificationLogic) BindEmailWithVerification(req *types.Bi
 		// }
 	}
 	// 4. 生成新的JWT token
-	token, err := l.generateTokenForUser(emailUserId)
+	token, err := l.generateTokenForUser(emailUserId, deviceIdentifier)
 	if err != nil {
 		l.Errorw("生成JWT token失败", logger.Field("error", err.Error()), logger.Field("email_user_id", emailUserId))
 		return nil, errors.Wrapf(xerr.NewErrCode(xerr.DatabaseQueryError), "生成JWT token失败")
@@ -428,12 +428,12 @@ func (l *BindEmailWithVerificationLogic) transferDeviceToEmailUser(deviceUserId,
 	}
 
 	// 4. 生成新的JWT token
-	token, err := l.generateTokenForUser(emailUserId)
+	token, err := l.generateTokenForUser(emailUserId, deviceIdentifier)
 	if err != nil {
 		return nil, err
 	}
 
-	// 5. 强制清除邮箱用户的所有相关缓存（确保获取最新数据）// 清除邮箱用户缓存
+	// 5. 强制清除邮箱用户的所有相关缓存（确保获取最新数据）
 	emailUser, _ := l.svcCtx.UserModel.FindOne(l.ctx, emailUserId)
 	if emailUser != nil {
 		// 清除用户的批量相关缓存（包括设备、认证方法等）
@@ -454,7 +454,7 @@ func (l *BindEmailWithVerificationLogic) transferDeviceToEmailUser(deviceUserId,
 }
 
 // generateTokenForUser 为指定用户生成JWT token
-func (l *BindEmailWithVerificationLogic) generateTokenForUser(userId int64) (string, error) {
+func (l *BindEmailWithVerificationLogic) generateTokenForUser(userId int64, deviceIdentifier string) (string, error) {
 	// 生成JWT token
 	accessExpire := l.svcCtx.Config.JwtAuth.AccessExpire
 	sessionId := uuidx.NewUUID().String()
@@ -479,6 +479,17 @@ func (l *BindEmailWithVerificationLogic) generateTokenForUser(userId int64) (str
 		// session缓存失败不影响token生成，只记录错误
 	}
 
+	// 设置设备缓存映射 (identifier -> sessionId)
+	if deviceIdentifier != "" {
+		deviceCacheKey := fmt.Sprintf("%v:%v", config.DeviceCacheKeyKey, deviceIdentifier)
+		if err := l.svcCtx.Redis.Set(l.ctx, deviceCacheKey, sessionId, time.Duration(accessExpire)*time.Second).Err(); err != nil {
+			l.Errorw("设置设备缓存失败", logger.Field("error", err.Error()), logger.Field("device_identifier", deviceIdentifier))
+			// 不影响主流程，只记录错误
+		} else {
+			l.Infow("更新设备Session映射成功", logger.Field("device_identifier", deviceIdentifier), logger.Field("session_id", sessionId))
+		}
+	}
+
 	l.Infow("为用户生成token成功", logger.Field("user_id", userId))
 	return jwtToken, nil
 }