System and method for controlling devices in home network environment

PURPOSE: A system and a method for controlling a device on a home network environment are provided to reduce the cost increased by the request of the additional software support by making an application program for the device control and the user interface on the home network be independent of the operation environment of the device and be directly driven by a web browser. CONSTITUTION: The application program providing the user interface is driven on a controlling device(300). The controlling device receives the state information from an object device periodically(310). The application program displays the operating object device on a screen of the controlling device by referring to the state information(330). If a user selects a specific object device, a web page guiding the operation of the selected device is displayed on the screen(350). If the user inputs a control instruction by referring to the web page, the controlling device transmits the control instruction to the corresponding object device(380).