A remote control device includes: a display configured to receive a driving image and a monitoring image from each of N mobile robots, such that N driving images and M monitoring images are received, and to display the received N driving images and M monitoring images; a sensor configured to track a gaze of a user; and a controller configured to provide a control right to the user for a first robot of the N mobile robots as a master mobile robot based on the gaze of the user being tracked by the sensor as staying on the driving image or the monitoring image of the first robot displayed on the display.