Television thoracoscopic cardiac surgery began in the 1990s and, to date, has been able to perform most procedures in the field of cardiac surgery, such as ligation of unclosed arterial ducts. Atrial septal defect repair surgery (30, etc.). Compared to conventional direct cardiac surgery, televised thoracoscopic cardiac surgery has significant differences. The surgical field is different. Thoracoscopic cardiac surgery uses the image transmitted from the thoracoscope and camera system to the TV monitor screen as the surgical field, and the surgical field is two-dimensional and is on the TV screen instead of the traditional direct view through the surgical incision. Using a 10mm,30 degree thoracoscope, the chest is entered at the seventh intercostal space in the mid-axillary line, and the position, brightness and focal length of the TV thoracoscope are adjusted so that the entire right thoracic cavity, the root of the inferior vena cava and the right atrium can be seen, and the root of the superior vena cava and the root of the ascending aorta can be seen as well after the downward traction of the right heart ear. The operation process and purpose of TV thoracoscopic cardiac surgery are the same as traditional open-chest direct view surgery, but the operation method and technique are very different. The operative field of view is two-dimensional, not the traditional operative field of view under direct view via surgical incision; the operation space of surgery is somewhat restricted, and there are only two operation holes for surgical instruments to enter the chest cavity, so the choice of incision is very important. The main operating hole (second incision) is located between the fourth rib next to the right sternum and is used to perform the main intra-thoracic operations, such as separation, incision, suturing, knotting, and snapping of the inferior vena cava blocking band. If this incision is not chosen properly, other operations can be completed, but it will be very difficult to set the inferior vena cava blocking band; the auxiliary operation hole (third incision) is in the third intercostal space of the right axillary midline, because there are superior vena cava blocking band, cold irrigation needle, ascending aortic blocking forceps, superior vena cava cannula and surgical operation instruments into the chest, so this incision should be larger, each tube can be located in the upper right of the chest cavity, which does not affect the intra-thoracic operation, and this incision is in a straight line with the transverse sinus of pericardium. This incision is in a straight line with the transverse sinus of the pericardium, and it is easy and feasible to block the ascending aorta without separating the ascending aorta. The biggest advantage of TV thoracoscopic cardiac surgery is to ensure the surgical effect without opening the chest, and to minimize the surgical trauma, the skin incision is 1-2cm long, without cutting the muscle, and the intercostal muscle can be separated into the chest, without using the chest opener, without skeletal injury, light trauma, in line with the cosmetic requirements, light postoperative pain, and short postoperative recovery time. However, TV thoracoscopic cardiac surgery must be a new technology, and has many shortcomings, such as the need for more expensive equipment such as thoracoscopy; technical equipment is not perfect, the surgical experience is not very rich, the operating time, extracorporeal circulation time is slightly longer than the traditional open-heart surgery; operation is also more difficult and risky, need to learn the knowledge of endoscopic surgery and a lot of endoscopic operation training; there will also be some new complications. The procedure is more difficult and risky. Because the experience of TV thoracoscopic cardiac surgery is yet to be further accumulated, the technical equipment is yet to be perfected, and the surgical technique is yet to be skilled, so in the early stage of TV thoracoscopic cardiac surgery, only relatively simple congenital heart diseases can be selected.