Disclosed is a remote control system in a mobile communication terminal and method thereof enabling a user to use the mobile communication terminal not only passively but also actively. The present invention includes a first step of receiving a remote control command from a subscriber, a second step of recording the remote control command in a reserved field of the page message, a third step of transmitting the page message to the mobile communication terminal, and a fourth step of having the mobile communication terminal operate in accordance with the remote control command included in the page message. The fourth step includes the steps of verifying a species of the received page message by parsing the received page message, extracting the remote control command by analyzing the reserved field of the page message if the received page message is for controlling the mobile communication terminal remotely, and controlling an operating state of the mobile communication terminal in accordance with the extracted remote control command.