This application provides a communication method and device, and may be applied to U2N relay communication. In the method, a source base station sends a handover request to a target base station, where the handover request includes an identifier of relay UE, UE context information of the relay UE, an identifier of remote UE, and UE context information of the remote UE. The source base station receives a handover response from the target base station, where the handover response includes radio bearer configuration information that is of a candidate target cell and that is configured for the relay UE, and radio bearer configuration information that is of the candidate target cell and that is configured for the remote UE.