diff --git a/internal/service/asset/service.go b/internal/service/asset/service.go
index 678ad9c..0894e1f 100644
--- a/internal/service/asset/service.go
+++ b/internal/service/asset/service.go
@@ -531,6 +531,8 @@ func (s *Service) Refresh(ctx context.Context, assetType string, id uint) (*dto.
 		return s.GetRealtimeStatus(ctx, "card", id)
 
 	case "device":
+		totalStart := time.Now()
+
 		// 检查冷却期
 		cooldownKey := constants.RedisDeviceRefreshCooldownKey(id)
 		if s.redis.Exists(ctx, cooldownKey).Val() > 0 {
@@ -542,13 +544,30 @@ func (s *Service) Refresh(ctx context.Context, assetType string, id uint) (*dto.
 		if err != nil {
 			return nil, errors.Wrap(errors.CodeInternalError, err, "查询绑定卡失败")
 		}
+
+		cardIDs := make([]uint, 0, len(bindings))
 		for _, b := range bindings {
-			card, cardErr := s.iotCardStore.GetByID(ctx, b.IotCardID)
-			if cardErr != nil {
-				logger.GetAppLogger().Warn("刷新设备绑定卡失败：查卡失败",
+			cardIDs = append(cardIDs, b.IotCardID)
+		}
+		cards, err := s.iotCardStore.GetByIDs(ctx, cardIDs)
+		if err != nil {
+			return nil, errors.Wrap(errors.CodeInternalError, err, "查询绑定卡详情失败")
+		}
+
+		cardMap := make(map[uint]*model.IotCard, len(cards))
+		for _, card := range cards {
+			cardMap[card.ID] = card
+		}
+
+		cardRefreshStart := time.Now()
+		refreshedCardCount := 0
+		for _, b := range bindings {
+			card, ok := cardMap[b.IotCardID]
+			if !ok {
+				logger.GetAppLogger().Warn("刷新设备绑定卡失败：未找到卡信息",
 					zap.Uint("device_id", id),
 					zap.Uint("card_id", b.IotCardID),
-					zap.Error(cardErr))
+				)
 				continue
 			}
 			if refreshErr := s.iotCardService.RefreshCardDataFromGateway(ctx, card.ICCID); refreshErr != nil {
@@ -556,36 +575,29 @@ func (s *Service) Refresh(ctx context.Context, assetType string, id uint) (*dto.
 					zap.Uint("device_id", id),
 					zap.String("iccid", card.ICCID),
 					zap.Error(refreshErr))
+				continue
 			}
+			refreshedCardCount++
 		}
+		cardRefreshDuration := time.Since(cardRefreshStart)
 
 		// 设置冷却 Key
 		s.redis.Set(ctx, cooldownKey, 1, constants.DeviceRefreshCooldownDuration)
 
-		// 刷新设备自身信息（在线状态、当前卡、固件版本等），失败不阻断刷新流程（per D-15）
-		if s.gatewayClient != nil {
-			device, devErr := s.deviceStore.GetByID(ctx, id)
-			if devErr == nil {
-				// IMEI 优先，无则用 SN（per D-3 注释说明）
-				cardNo := device.IMEI
-				if cardNo == "" {
-					cardNo = device.SN
-				}
-				if cardNo != "" {
-					if syncResp, syncErr := s.gatewayClient.SyncDeviceInfo(ctx, &gateway.SyncDeviceInfoReq{
-						CardNo: cardNo,
-					}); syncErr == nil {
-						s.updateDeviceFromSyncInfo(ctx, id, syncResp)
-					} else {
-						logger.GetAppLogger().Warn("sync-info 调用失败",
-							zap.Uint("device_id", id),
-							zap.Error(syncErr))
-					}
-				}
-			}
+		realtimeStart := time.Now()
+		result, realtimeErr := s.GetRealtimeStatus(ctx, "device", id)
+		logger.GetAppLogger().Info("资产刷新完成",
+			zap.Uint("device_id", id),
+			zap.Int("binding_count", len(bindings)),
+			zap.Int("refreshed_card_count", refreshedCardCount),
+			zap.Duration("card_refresh_duration", cardRefreshDuration),
+			zap.Duration("realtime_status_duration", time.Since(realtimeStart)),
+			zap.Duration("total_duration", time.Since(totalStart)),
+		)
+		if realtimeErr != nil {
+			return nil, realtimeErr
 		}
-
-		return s.GetRealtimeStatus(ctx, "device", id)
+		return result, nil
 
 	default:
 		return nil, errors.New(errors.CodeInvalidParam, "不支持的资产类型，仅支持 card 或 device")