The present invention relates to a method and apparatus for distributing paging messages in a wireless communication system. The wireless communication system may include a paging controller configured to distribute the paging messages in a paging area, a paging group including a plurality of base stations within the paging area configured to receive the paging message, and a paging interface between the paging controller and the paging group configured to support transmission of only the paging messages to all the plurality of base stations through a single transmission of the paging message from the paging controller. The method may include distributing a paging message to all of a plurality of base stations through a single transmission of a paging message from a paging controller over a secured IP-multicast group.