The present invention relates to a periodic channel state information (CSI) reporting method performed by a terminal in a wireless communication system, and provides a method comprising: determining whether to select a first physical uplink control channel (PUCCH) format; and if the first PUCCH format is selected, transmitting, on the basis of the first PUCCH format, a periodic CSI report and a hybrid automatic repeat request (HARQ) ACK, wherein the first PUCCH format is a PUCCH format supporting multiple periodic CSI reports.