diff --git a/internal/model/dto/iot_card_dto.go b/internal/model/dto/iot_card_dto.go
index 63795ef..9367a7e 100644
--- a/internal/model/dto/iot_card_dto.go
+++ b/internal/model/dto/iot_card_dto.go
@@ -18,6 +18,7 @@ type ListStandaloneIotCardRequest struct {
 	IsReplaced    *bool  `json:"is_replaced" query:"is_replaced" description:"是否有换卡记录 (true:有换卡记录, false:无换卡记录)"`
 	ICCIDStart    string `json:"iccid_start" query:"iccid_start" validate:"omitempty,max=20" maxLength:"20" description:"ICCID起始号"`
 	ICCIDEnd      string `json:"iccid_end" query:"iccid_end" validate:"omitempty,max=20" maxLength:"20" description:"ICCID结束号"`
+	CarrierName   string `json:"carrier_name" query:"carrier_name" validate:"omitempty,max=100" maxLength:"100" description:"运营商名称(模糊查询)"`
 }
 
 type StandaloneIotCardResponse struct {
diff --git a/internal/service/iot_card/service.go b/internal/service/iot_card/service.go
index 267d6ac..1e8706a 100644
--- a/internal/service/iot_card/service.go
+++ b/internal/service/iot_card/service.go
@@ -148,6 +148,9 @@ func (s *Service) ListStandalone(ctx context.Context, req *dto.ListStandaloneIot
 	if req.SeriesID != nil {
 		filters["series_id"] = *req.SeriesID
 	}
+	if req.CarrierName != "" {
+		filters["carrier_name"] = req.CarrierName
+	}
 
 	// 代理用户注入 subordinate_shop_ids，让 Store 层走并行查询路径
 	// 避免 PG 对 shop_id IN (...) + ORDER BY 选择全表扫描
diff --git a/internal/store/postgres/iot_card_store.go b/internal/store/postgres/iot_card_store.go
index cae194c..71c9ee2 100644
--- a/internal/store/postgres/iot_card_store.go
+++ b/internal/store/postgres/iot_card_store.go
@@ -736,6 +736,9 @@ func (s *IotCardStore) applyStandaloneFilters(ctx context.Context, query *gorm.D
 	if seriesID, ok := filters["series_id"].(uint); ok && seriesID > 0 {
 		query = query.Where("series_id = ?", seriesID)
 	}
+	if carrierName, ok := filters["carrier_name"].(string); ok && carrierName != "" {
+		query = query.Where("carrier_name LIKE ?", "%"+carrierName+"%")
+	}
 
 	return query
 }