A method by which a terminal receives a reference signal in a wireless communication system, according to one embodiment of the present disclosure, comprises the steps of: receiving a channel state information-reference signal (CSI-RS); and deriving a CSI by measuring the CSI-RS, wherein the CSI-RS is allocated to a wireless resource according to a preset time resource-related pattern, and the CSI-RS or a demodulation reference signal (DMRS) can be dropped according to predetermined priorities when the CSI-RS and the DMRS are overlapped on a symbol.