A method for receiving downlink control information by a terminal in a wireless communication system according to an embodiment of the present invention may comprise the steps of: performing blind detection of a group-common physical downlink control channel (PDCCH) in a common search space (CSS) having a plurality of PDCCH candidates; and acquiring downlink control information (DCI) indicating a slot format from the group-common PDCCH acquired through the blind detection, wherein, in the blind detection of the group-common PDCCH, the terminal attempts to selectively detect the group-common PDCCH for only a PDCCH candidate at a predetermined position in the CSS having the plurality of PDCCH candidates.