diff --git a/internal/service/device/service.go b/internal/service/device/service.go
index 48ba070..35728e9 100644
--- a/internal/service/device/service.go
+++ b/internal/service/device/service.go
@@ -872,6 +872,7 @@ func (s *Service) StopDevice(ctx context.Context, deviceID uint) (*dto.DeviceSus
 			continue
 		}
 
+		s.invalidatePollingCardCache(card.ID)
 		successCount++
 	}
 
@@ -973,6 +974,7 @@ func (s *Service) StartDevice(ctx context.Context, deviceID uint) error {
 			continue
 		}
 
+		s.invalidatePollingCardCache(card.ID)
 		successCount++
 	}
 
@@ -989,3 +991,10 @@ func (s *Service) StartDevice(ctx context.Context, deviceID uint) error {
 
 	return nil
 }
+
+func (s *Service) invalidatePollingCardCache(cardID uint) {
+	if s.redis == nil {
+		return
+	}
+	_ = s.redis.Del(context.Background(), constants.RedisPollingCardInfoKey(cardID)).Err()
+}
diff --git a/internal/service/iot_card/service.go b/internal/service/iot_card/service.go
index ebb66fd..a01bf14 100644
--- a/internal/service/iot_card/service.go
+++ b/internal/service/iot_card/service.go
@@ -876,6 +876,11 @@ func (s *Service) RefreshCardDataFromGateway(ctx context.Context, iccid string)
 		}
 	}
 
+	// 失效轮询缓存，确保轮询系统读到最新的 network_status/real_name_status/流量
+	if s.pollingCallback != nil {
+		s.pollingCallback.OnCardStatusChanged(ctx, card.ID)
+	}
+
 	s.logger.Info("刷新卡数据成功",
 		zap.String("iccid", iccid),
 		zap.Uint("card_id", card.ID),
diff --git a/internal/service/iot_card/stop_resume_service.go b/internal/service/iot_card/stop_resume_service.go
index 0405171..58b1100 100644
--- a/internal/service/iot_card/stop_resume_service.go
+++ b/internal/service/iot_card/stop_resume_service.go
@@ -98,6 +98,9 @@ func (s *StopResumeService) CheckAndStopCard(ctx context.Context, cardID uint) e
 		return err
 	}
 
+	// 失效轮询缓存，确保下次轮询从 DB 读取最新状态
+	s.invalidatePollingCache(cardID)
+
 	s.logger.Info("卡因流量耗尽已停机",
 		zap.Uint("card_id", cardID),
 		zap.String("iccid", card.ICCID))
@@ -183,6 +186,8 @@ func (s *StopResumeService) resumeSingleCard(ctx context.Context, cardID uint) e
 		return nil
 	}
 
+	s.invalidatePollingCache(cardID)
+
 	s.logger.Info("卡已自动复机",
 		zap.Uint("card_id", cardID),
 		zap.String("iccid", card.ICCID))
@@ -345,6 +350,9 @@ func (s *StopResumeService) ManualStopCard(ctx context.Context, iccid string) er
 	}).Error; err != nil {
 		return errors.Wrap(errors.CodeDatabaseError, err, "更新卡状态失败")
 	}
+
+	s.invalidatePollingCache(card.ID)
+
 	return nil
 }
 
@@ -384,5 +392,19 @@ func (s *StopResumeService) ManualStartCard(ctx context.Context, iccid string) e
 	}).Error; err != nil {
 		return errors.Wrap(errors.CodeDatabaseError, err, "更新卡状态失败")
 	}
+
+	s.invalidatePollingCache(card.ID)
+
 	return nil
 }
+
+// invalidatePollingCache 删除轮询卡缓存，下次轮询自动从 DB 重建
+func (s *StopResumeService) invalidatePollingCache(cardID uint) {
+	if s.redis == nil {
+		return
+	}
+	key := constants.RedisPollingCardInfoKey(cardID)
+	if err := s.redis.Del(context.Background(), key).Err(); err != nil {
+		s.logger.Warn("删除轮询卡缓存失败", zap.Uint("card_id", cardID), zap.Error(err))
+	}
+}