Funnel chest is a congenital developmental malformation with a family tendency, which means that the sternum, rib cartilage and part of the rib cage are depressed toward the spine to form a funnel shape. It is a progressive lesion. Mild funnel chest has little effect on circulation and respiration, but in severe cases, the funnel depression can cause the front chest against the back, compressing the heart and lungs and other organs, making the child’s respiratory tract easily infected, with poor motor endurance, a thin body type, a tendency to be quiet and immobile, and a very withdrawn mentality. The best time for orthopedic treatment is between the ages of 3 and 12, because at this age the bone is soft and hard, malleable and orthopedically effective. The “single-port thoracoscopic funnel chest correction” is a modification of the nuss procedure, which requires only a 1 cm incision on the right side of the chest wall of the child, and no incision on the left side of the chest wall, and the operation can be completed without a penetrator, with only one penetration of the titanium plate. The operation time is short, minimally invasive more convenient for the main surgeon to control the safety; and the postoperative recovery is fast, no incision on the anterior chest, and beautiful appearance.