There is provided a remote control system which changes the functions corresponding to a specific operation unit provided for a controlling apparatus in accordance with distance, thereby improving the convenience for a user. The remote control system includes a controlled apparatus such as a TV set and a controlling apparatus such as a remote controller which remotely controls the controlled apparatus. A measuring unit measures the distance between the controlled apparatus and the controlling apparatus. A changing unit changes the functions to be executed when a specific one of a plurality of operation units provided for the controlling apparatus is operated, in accordance with the measured distance.