A method for forwarding a message in a wireless communication system according to an embodiment of the present invention is performed by an M2M device, and comprises the steps of: receiving a request message; checking whether the M2M device is a recipient of the request message, using a particular parameter included in the request message; when the M2M device is not a recipient of the request message, checking whether only one registrant M2M device exists other than the M2M device which has received the request message within one hop of the M2M device, wherein the registrant M2M device is in an M2M device in which one or more other M2M devices can be registered; and when the only one registrant M2M device is present within the one hop, forwarding the request message to the only one registrant M2M device, wherein the particular parameter may be a “to” parameter.