This disclosure relates to a 5G or pre-5G communication system supporting a higher data rate than a 4G communication system such as LIE. More specifically, a method for performing, by a terminal, communication in a wireless communication system of the present invention comprises: a step of performing a connection procedure for a first wireless network; a step of performing a connection procedure for a second wireless network; and a step of performing communication for the same service through the first wireless network or the second wireless network according to wireless link states of the first wireless network and the second wireless network.