A method for adaptively performing power saving in a station of a wireless communication system includes: receiving first power-save capability information from an AP, the first power-save capability information containing information on power-save schemes supported by a MAC layer of the AP; transmitting second power-save capability information to the AP in response to the first power-save capability information, the second power-save capability information containing information on power-save schemes supported by a MAC layer of the station; transmitting power-save policy information, into which properties of traffics used in the station are reflected, to the AP; and performing a power-save function while interworking with the MAC layer of the station, according to the power-save policy information based on a predetermined power-save scheme.