Disclosed are a method for transceiving a paging message in a wireless communication system that supports a multiple radio access network and an apparatus for the method. In detail, the method comprises: a step of receiving, from a terminal, a paging redirection request message for requesting redirection of a paging message transmission path of a cellular network through a wireless local area network (WLAN) access point (AP) in the event the terminal accessed to a base station of the cellular network has switched the access thereof to the WLAN AP; a step of transmitting a paging redirection response message indicating whether the redirection of the paging message is authenticated or not to the terminal through the WLAN AP; and a step of transmitting a paging message to the terminal through the WLAN AP.