The present disclosure provides a method for transmitting or receiving uplink signal between a terminal and a base station in a wireless communication system supporting an unlicensed band, and an apparatus for supporting same. According to one specific embodiment of the present disclosure, the terminal may perform, on the basis of uplink resource information received from the base station, uplink signal transmission through at least one interlace included only in a part of sub-bands among all the sub-bands included in the unlicensed band.