One embodiment of the present invention relates to a method for mapping a discovery signal by a terminal in a wireless communication system, the method for mapping the discovery signal comprising the steps of: generating the discovery signal; mapping the discovery unit on at least a portion of a plurality of discovery signal resource blocks (RB), wherein when the number of terminals transreceiving the discovery signal including the terminal is less than or equal to a predetermined value, an absolute value of a frequency band of a discovery signal RB included in a positive frequency zone with respect to a direct current (DC) carrier, from among the plurality of discovery signal RBs, does not overlap with an absolute value of a frequency band corresponding to a discovery signal RB present in a negative frequency zone.