A method for hybrid automatic repeat request-acknowledgment/negative-acknowledgment (HARQ-ACK/NACK) feedback in a wireless communication system, according to one embodiment of the present disclosure, is performed by a terminal and may comprise the steps of: determining an uplink resource for transmitting a NACK if the NACK must be transmitted as HARQ-ACK/NACK feedback for a downlink signal; determining whether to transmit, along with the NACK, a channel quality indicator (CQI) associated with the downlink signal corresponding to the NACK; and if it is determined to transmit the CQI along with the NACK, transmitting the NACK and the CQI on the determined uplink resource.