A surgical system, comprising: manipulators that respectively support an endoscope, a first surgical instrument, and a second surgical instrument; a remote control apparatus that includes a display device configured to display an image captured by the endoscope, a first operation handle to operate the first surgical instrument, a second operation handle to operate the second surgical instrument, and an operation pedal section including foot pedals; and a control apparatus configured to control at least the display device, wherein the operation pedal section includes contactless type sensors configured to detect the presence of a foot of an operator coming closer to the respective foot pedals, the foot pedals include a first foot pedal (21b, 22b) to execute a function of the first surgical instrument, a second foot pedal (21a, 22a) to execute a function of the second surgical instrument, and a third foot pedal to execute a function of the endoscope, the control apparatus is configured to display a graphical user interface, overlapped with the image captured by the endoscope, on the display device, the graphical user interface including a first area that displays information on the first surgical instrument, a second area that displays information on the second surgical instrument, and a third area that displays information on the endoscope which are arranged therein, and the control apparatus is further configured to change, when the foot of the operator coming closer to at least one of the first to third foot pedals is detected by at least one of the sensors, a display form of corresponding at least one of the first to third areas. manipulators that respectively support an endoscope, a first surgical instrument, and a second surgical instrument; a remote control apparatus that includes a display device configured to display an image captured by the endoscope, a first operation handle to operate the first surgical instrument, a second operation handle to operate the second surgical instrument, and an operation pedal section including foot pedals; and a control apparatus configured to control at least the display device, wherein the operation pedal section includes contactless type sensors configured to detect the presence of a foot of an operator coming closer to the respective foot pedals, the foot pedals include a first foot pedal (21b, 22b) to execute a function of the first surgical instrument, a second foot pedal (21a, 22a) to execute a function of the second surgical instrument, and a third foot pedal to execute a function of the endoscope, the control apparatus is configured to display a graphical user interface, overlapped with the image captured by the endoscope, on the display device, the graphical user interface including a first area that displays information on the first surgical instrument, a second area that displays information on the second surgical instrument, and a third area that displays information on the endoscope which are arranged therein, and the control apparatus is further configured to change, when the foot of the operator coming closer to at least one of the first to third foot pedals is detected by at least one of the sensors, a display form of corresponding at least one of the first to third areas.