Method and apparatus for triggering mtc group in wireless communication system

A method for enabling a Machine Type Communication (MTC) - InterWorking Function (IWF) to trigger a MTC group in a wireless communication system according to one embodiment of the present invention comprises a step of transmitting a triggering request to a network node. The network node for receiving the triggering request determines success of the triggering request according to group-triggering-related information comprising information on whether the triggering request is transmitted in MTC group units.