A method for providing an application-related MO parameter value is provided. The method includes, as an application processing unit requests an application-related Management Object (MO) parameter value or requests a change thereof, directly creating an MO corresponding to the request through a Device Management (DM) client which receives the request, an MO corresponding to the request, or receiving related data, e.g. software, firmware, and the like, to create an MO corresponding to the request of the application processing unit, from a DM server or a management authority unit; and transferring an MO parameter value corresponding to the request to the application processing unit according to a reception scheme determined by the application processing unit. Since an application-related MO parameter value is directly requested and provided, a function or service which can be provided in real time is optimized.