This document discloses a method and an apparatus for transmitting a paging frame and wakeup frame. The An AP comprises a transceiver receiving a paging frame from an STA; and a processor generating a wakeup frame for informing of existence of buffered data to be transmitted to the STA in response to the paging frame, where the paging frame includes a PLCP (Physical Layer Convergence Protocol) header and the PCLP header includes a waiting time field indicating a waiting time during which an STA is operated in the active mode to receive the wakeup frame; and the wakeup frame includes a PLCP header and the PLCP header includes a wakeup indication indicating the wakeup frame and a wakeup STA identification having information specifying the STA. Therefore, an STA can reduce power consumption wasted in the active mode.