Pectus excavatum is an abnormal protrusion of the sternum outward during the development of the thorax, and is one of the common thoracic deformities of the chest wall. The main effects of pectus excavatum on human body are the increase of anterior and posterior diameter of the thorax and the decrease of lung elasticity, which leads to the decrease of breathing amplitude. More than 1/3 of patients may have moderate shortness of breath, weakness and chest pain, and even cause different degrees of psychological disorders. Surgical correction is currently the only effective method for the treatment of corpus cavernosum. In recent years, we have used the most advanced minimally invasive sternal sink technique to treat patients with corpus cavernosum and have achieved very satisfactory results. Minimally invasive sternal sinker surgery is a customized orthopedic steel plate subtly placed under the skin of the chest to press the convex sternum and ribs downward, so that the formerly convex anterior chest wall can be restored to a normal flat level, and the plate can be removed 2-3 years after surgery. The surgery is less traumatic, almost scarless, with quick recovery and short hospitalization time, you can be discharged 3 days after surgery.