A method and an apparatus for performing sensing measurement in a wireless LAN system are disclosed. According to one embodiment of the present disclosure, a method for performing sensing measurement in a wireless LAN system comprises the steps of: receiving, from a second STA, a sensing trigger frame including a common information field and one or more STA information fields; and transmitting an NDP to the second STA on the basis of the trigger frame, wherein the common information field includes first information related to one or more punctured first unit frequencies, and a particular STA information field corresponding to a first STA from among the one or more STA information fields can include second information related to allocation of one or more second unit frequencies for transmission of the NDP.