A method and an apparatus for performing communication in a wireless communication system are provided. According to an embodiment of the present disclosure, a method of a terminal including at least one subscriber identification module (SIM) includes: acquiring information on SIMs and radio frequency (RF) modules included in a plurality of terminals within a predetermined distance from the terminal; establishing a connection relationship between the at least one SIM included in the plurality of terminals and the at least one RF module included in the plurality of terminals based on the acquired information; and performing wireless communication based on the connection relationship.