Remote surgery teaching is to use remote consultation technology and video technology to perform real-time recording and remote transmission of the entire surgical demonstration screen image at the surgical site. The remote surgery teaching system adopts advanced digital image processing technology and digital network technology, and combines software platform and hardware equipment to create informatization operating rooms, multimedia display classrooms, conference rooms, etc., so as to improve the quality of surgery and reduce the infection rate of surgery. By using the surgical teaching system to complete the simultaneous broadcast and recording of multi-channel medical images in the operating room, the real-time broadcast (and postoperative on-demand) of hospital operations, and the communication between the operating room and the outside world are realized.