The present invention relates to a method for efficiently transmitting and receiving a group wake up signal (WUS) in a wireless communication system, and an apparatus therefor and, more particularly, to a method and an apparatus therefor, the method comprising: acquiring a WUS sequence associated with a WUS resource for a communication apparatus from among a first WUS resource or a second WUS resource for the group WUS, wherein the first WUS resource is configured to include a WUS resource available for the communication apparatus which does not support the group WUS, and the second WUS resource is configured to be connected before the first WUS resource in time; and on the basis of the acquired WUS sequence, attempting to detect the group WUS in the WUS resource for the communication apparatus, wherein the WUS sequence associated with the WUS resource for the communication apparatus is a WUS sequence which is given on the basis of a scrambling sequence generated with an initialization value determined on the basis of resource identification information of the WUS resource for the communication apparatus, on the basis of the WUS resource for the communication apparatus being the first WUS resource, the resource identification information of the WUS resource for the communication apparatus has a value of 0, and on the basis of the WUS resource for the communication apparatus being the second WUS resource, the resource identification information of the WUS resource for the communication apparatus has a value of 1.