The present document relates to a method for processing a signal when a plurality of signals are to be received or transmitted in a specific time interval (e.g., a sub-frame) in a wireless communication system supporting direct communication between terminals, i.e., D2D communication, and an apparatus therefor. To this end, when a terminal is to receive a plurality of signals including a discovery signal, a D2D synchronization signal, a resource allocation signal, and a D2D communication signal at a specific time point, the corresponding terminal may preferentially select and process a specific signal from among the plurality of signals.