In a method and a device for a MLSR operation in a wireless LAN, an operation method of a first device includes the steps of: performing first communication with a second device in a first link; performing a listening operation in one or more links after the end of the first communication; and starting a delay timer in a second link from among one or more links, wherein the first device does not initiate a frame transmission operation in the second link during the time corresponding to the delay timer.