A response message sending method, performed by an aggressor base station, characterized by comprising: monitoring a reference signal, wherein the reference signal carries an addressing identifier corresponding to route information of a victim node set, and the victim node set comprises a victim base station; and sending, after monitoring the reference signal sent by the victim base station, a response message to the victim node set according to the addressing identifier carried in the reference signal, wherein the response message is used for indicating that an aggressor base station monitors the reference signal sent by the victim base station; wherein the addressing identifier comprises a set identifier of the victim node set, and modes for sending the response message to the victim node set according to the addressing identifier carried in the reference signal comprise at least one of: mode 1: querying a network management or a server about route information of a victim base station corresponding to the set identifier, and acquiring, from the network management or the server, the route information of the victim base station corresponding to the set identifier, wherein the route information comprises a base station identifier of the victim base station, a tracking area identity, TAI, of the victim base station, and public land mobile network, PLMN, information of the victim base station; and sending the response message to the victim base station according to the route information of the victim base station; wherein the method further comprises: receiving interference assistance information sent by the victim base station, and performing interference control according to the received interference assistance information; wherein before monitoring the reference signal, the method comprises: in a case where receiving monitoring trigger information sent by the victim base station, starting the reference signal monitoring; wherein a number of hops is set in the monitoring trigger information, and the number of hops automatically decreases each time the monitoring trigger signal passes through a base station or a core network element. monitoring a reference signal, wherein the reference signal carries an addressing identifier corresponding to route information of a victim node set, and the victim node set comprises a victim base station; and sending, after monitoring the reference signal sent by the victim base station, a response message to the victim node set according to the addressing identifier carried in the reference signal, wherein the response message is used for indicating that an aggressor base station monitors the reference signal sent by the victim base station; wherein the addressing identifier comprises a set identifier of the victim node set, and modes for sending the response message to the victim node set according to the addressing identifier carried in the reference signal comprise at least one of: mode 1: querying a network management or a server about route information of a victim base station corresponding to the set identifier, and acquiring, from the network management or the server, the route information of the victim base station corresponding to the set identifier, wherein the route information comprises a base station identifier of the victim base station, a tracking area identity, TAI, of the victim base station, and public land mobile network, PLMN, information of the victim base station; and sending the response message to the victim base station according to the route information of the victim base station; wherein the method further comprises: receiving interference assistance information sent by the victim base station, and performing interference control according to the received interference assistance information; wherein before monitoring the reference signal, the method comprises: in a case where receiving monitoring trigger information sent by the victim base station, starting the reference signal monitoring; wherein a number of hops is set in the monitoring trigger information, and the number of hops automatically decreases each time the monitoring trigger signal passes through a base station or a core network element. querying a network management or a server about route information of a victim base station corresponding to the set identifier, and acquiring, from the network management or the server, the route information of the victim base station corresponding to the set identifier, wherein the route information comprises a base station identifier of the victim base station, a tracking area identity, TAI, of the victim base station, and public land mobile network, PLMN, information of the victim base station; and sending the response message to the victim base station according to the route information of the victim base station; wherein the method further comprises: receiving interference assistance information sent by the victim base station, and performing interference control according to the received interference assistance information; wherein before monitoring the reference signal, the method comprises: in a case where receiving monitoring trigger information sent by the victim base station, starting the reference signal monitoring; wherein a number of hops is set in the monitoring trigger information, and the number of hops automatically decreases each time the monitoring trigger signal passes through a base station or a core network element.