A control command transmission apparatus for controlling devices in a home network system environment is disclosed. A control command transmission apparatus includes a key input unit for inputting a user's operation signal to control corresponding electronic devices connected to the home network system; a sensor for detecting the user's motion applied to the control command transmission apparatus to control the electronic devices; a location identification unit for identifying the location of the control command transmission apparatus of the home network system; a command generator for generating a command corresponding to the motion detected by the sensor; and an interface for communicating with a home server to which the electronic devices are connected, and for transmitting the command generated by the command generator to the home server. Accordingly, the present invention provides convenient use of electronic devices connected to a home network system.