diff --git a/src/modules/network_data/model/cdr_event_smf.go b/src/modules/network_data/model/cdr_event_smf.go
index 69e6a067..3053d53b 100644
--- a/src/modules/network_data/model/cdr_event_smf.go
+++ b/src/modules/network_data/model/cdr_event_smf.go
@@ -27,6 +27,7 @@ type CDREventSMFQuery struct {
 	RmUID        string `json:"rmUID" form:"rmUID"`
 	RecordType   string `json:"recordType" form:"recordType"` // 暂时没用到
 	SubscriberID string `json:"subscriberID" form:"subscriberID"`
+	DNN          string `json:"dnn" form:"dnn"`
 	StartTime    string `json:"startTime" form:"startTime"`
 	EndTime      string `json:"endTime" form:"endTime"`
 	SortField    string `json:"sortField" form:"sortField" binding:"omitempty,oneof=timestamp"` // 排序字段，填写结果字段
diff --git a/src/modules/network_data/repository/cdr_event_smf.go b/src/modules/network_data/repository/cdr_event_smf.go
index 57341f43..5b46e5ff 100644
--- a/src/modules/network_data/repository/cdr_event_smf.go
+++ b/src/modules/network_data/repository/cdr_event_smf.go
@@ -42,6 +42,9 @@ func (r CDREventSMF) SelectByPage(querys model.CDREventSMFQuery) ([]model.CDREve
 	if querys.SubscriberID != "" {
 		tx = tx.Where("JSON_EXTRACT(cdr_json, '$.subscriberIdentifier.subscriptionIDData') = ?", querys.SubscriberID)
 	}
+	if querys.DNN != "" {
+		tx = tx.Where("JSON_EXTRACT(cdr_json, '$.pDUSessionChargingInformation.dNNID') = ?", querys.DNN)
+	}
 
 	// 查询结果
 	var total int64 = 0