disclosed are a multimode terminal that may simultaneously enhance utilization of a device and efficiency of a network by enabling a mobile terminal supporting a plurality of communication schemes to additionally support a relay function , and a method of relaying communication using the multimode terminal . a communication relay method of a multimode terminal according to an exemplary embodiment of the present disclosure includes : searching , by a base station , for terminals that support a plurality of communication schemes ; selecting , by the base station from among the searched terminals , a relay terminal that satisfies a predetermined condition for performing a multimode relay function ; requesting , by the base station , the relay terminal to perform the multimode relay function ; and relaying , by the relay terminal in response to the request of the base station , communication between the base station and a target terminal .