A seeking and source collocating method of wireless point-to-multipoints service is disclosed, the wireless network configures the special-used control channel of point-to-multipoints service, the collocating information of channel is sent to wireless terminal by broadcast; the wireless network sends seeking indicating message to terminals via seeking indicating channels, the terminal judges seeking indicating message set ' seek' or not, if yes, executes the next step, if else keeps monitoring; wireless network sends seeking messages of point-to-multipoints service via seeking channels, whichincludes the label information of group, the terminal receives seeking messages; the wireless network distributes and shares the wireless service channel source, and sends special-used control messages of point-to-multipoints service via control channels; it the terminal judges the seeking message is point-to-multipoints service of seeking terminal, then it receives the control channel, and adds the point-to-multipoints according to said control message. The invention can realize to share source, and reduce the complexity of system.