The present invention provides a method for enabling a server for a control plane to control a service in a mobile communication network. The control method can include a step of receiving a first message including an access point name (APN), a parameter for indicating an identifier of a local gateway and/or a selected IP traffic offload (SIPTO) service indicator from a Home (e)Node B. the first message can include a request message of a terminal. The control method can include a step of determining whether the SIPTO can be applied to data of the terminal based on the APN within the first message if the Home (e)Node B can provide the SIPTO service on the basis of the received first message. The step for determining is for determining whether the SIPTO can be applied to the APN included in the first message on the basis of the information related to the APN. The control method includes a further step of determining whether the SIPTO service can be provided for the terminal on the basis of user agreement information for a SIPTO service if the SIPTO can be applied to the data of the terminal; and a step of transmitting a SIPTO service notification to the Home (e)Node B according to the further decision.