A surgical system according to one or more embodiments may include: manipulators respectively supporting an endoscope and surgical instruments； a remote control apparatus including a display device to display an image captured by the endoscope, operation handles to operate the surgical instruments respectively, and foot pedals； and a control apparatus. The foot pedals include first and second foot pedals for the surgical instruments, and a third foot pedal for the endoscope. The control apparatus displays a graphical user interface, overlapped with the image captured by the endoscope, on the display device, the graphical user interface including first to third areas to display information on the surgical instruments and the endoscope. The control apparatus changes, when a foot of an operator is detected at an operation preparation position of one of the foot pedals, a display form of corresponding one of the first to third areas.
