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 for right hand to operate the first surgical instrument, a second operation handle for left hand to operate the second surgical instrument, and an operation pedal section that includes 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; and a control apparatus configured to control at least the display device, characterized in that the control apparatus is configured to display, on the display device, a graphical user interface overlapped with the image captured by the endoscope, the graphical user interface including a first area that displays information on the first surgical instrument to be operated by the first operation handle, a second area that displays information on the second surgical instrument to be operated by the second operation handle, and a third area that displays information on the endoscope, which are arranged side by side in order from right to left, wherein information on the first foot pedal is to be displayed in the first area in addition to the information on the first surgical instrument, information on the second foot pedal is to be displayed in the second area in addition to the information on the second surgical instrument, and information on the third foot pedal is to be displayed in the third area in addition to the information on the endoscope, wherein the first foot pedal includes a first coagulation pedal to coagulate a surgery site and a first cutting pedal to cut the surgery site, the second foot pedal includes a second coagulation pedal to coagulate the surgery site and a second cutting pedal to cut the surgery site, when the first coagulation pedal is operated, the first area displays information related to the first coagulation pedal, when the first cutting pedal is operated, the first area displays information related to the first cutting pedal, when the second coagulation pedal is operated, the second area displays information related to the second coagulation pedal, and when the second cutting pedal is operated, the second area displays information related to the second cutting pedal. 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 for right hand to operate the first surgical instrument, a second operation handle for left hand to operate the second surgical instrument, and an operation pedal section that includes 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; and a control apparatus configured to control at least the display device, characterized in that the control apparatus is configured to display, on the display device, a graphical user interface overlapped with the image captured by the endoscope, the graphical user interface including a first area that displays information on the first surgical instrument to be operated by the first operation handle, a second area that displays information on the second surgical instrument to be operated by the second operation handle, and a third area that displays information on the endoscope, which are arranged side by side in order from right to left, wherein information on the first foot pedal is to be displayed in the first area in addition to the information on the first surgical instrument, information on the second foot pedal is to be displayed in the second area in addition to the information on the second surgical instrument, and information on the third foot pedal is to be displayed in the third area in addition to the information on the endoscope, wherein the first foot pedal includes a first coagulation pedal to coagulate a surgery site and a first cutting pedal to cut the surgery site, the second foot pedal includes a second coagulation pedal to coagulate the surgery site and a second cutting pedal to cut the surgery site, when the first coagulation pedal is operated, the first area displays information related to the first coagulation pedal, when the first cutting pedal is operated, the first area displays information related to the first cutting pedal, when the second coagulation pedal is operated, the second area displays information related to the second coagulation pedal, and when the second cutting pedal is operated, the second area displays information related to the second cutting pedal.