The present invention relates to a device control method, and more particularly, to a device control method which can control respective devices by combining control commands for controlling functions executable by the respective devices, thereby enabling easier control of each device as well as accomplishing a particular purpose. To this end, the present invention provides a control method for controlling a main device and one or more auxiliary devices connected through communication with the main device, wherein the main device includes a command set for executing a specific purpose, the command set being formed by combining a plurality of control commands to execute a particular function of the main device or the auxiliary device, and the main device and the auxiliary device are controlled by the command set.