A machine to Machine (M2M) device for receiving parameter update information in a wireless communication system according to the present invention includes a receiver for receiving a first message, which includes information regarding the parameter update, from a base station. The information regarding the parameter update may include information indicating that a position update of M2M devices in a specific M2M group to which the M2M device belongs is required. The receiver may be further configured to transmit a second message including a position update request to the base station and receive a third message including position updated information on the M2M devices in the specific M2M group from the base station in response to the second message. The M2M device may further include a processor for performing a position update on the basis of the updated position information in the third message.