The present invention relates to a method and a device that control signals for a plurality of terminals possessed by the same user. More particularly, a method of controlling signals for a plurality of terminals using a mobility management entity (MME) according to an embodiment of the present invention is characterized by including the steps of: setting terminals with the same subscriber codes and the same mobility as grouping terminals; and transmitting group signals on the grouping terminals to a base station. According to the present invention, the following advantages are realized: of enabling the prevention of waste in having to report mobility-related information on each terminal and being able to simultaneously transmit grouping or other signals to all terminals that are in a group in a network.