Recently, Director Fan Xinglong of our Thoracic Surgery Department completed our first thoracoscopic minimally invasive funnel chest correction (Nuss surgery). The patient was an 18-year-old male with a chest wall deformity found for 6 years. On examination, he had a flat chest with obvious depressions, a thin body type, a preference for quietness but not movement, little activity and poor exercise endurance. He was prone to palpitations and had dyspnea during heavy exercise. The patient has low psychological self-esteem due to the funnel chest, is not sociable and more reticent. Since the patient was an adult and the bony thorax was fully developed, the surgery was more difficult, but Director Fan decided to adopt the less invasive and more aesthetic NUSS surgery from the patient’s point of view. Under thoracoscopic surveillance, two thoracic orthoses were placed at the lowest point of the thoracic depression to hold up the depression. The procedure went smoothly with about 20 ml of bleeding, and the patient recovered quickly after the operation and was very satisfied with the surgical result. The incidence of pectus excavatum (PE; funnel chest) is the most common pediatric chest wall deformity, the incidence is about 0.1%-0.7%, more common in males than females, the ratio of male to female is 4:1. It is generally believed that this disease is a congenital disease, the cause is not completely clear, may be related to genetic factors, some people believe that the cause of this disease is the diaphragm center tendon is too short, bony structures grow too fast, pulling the lower end of the sternal body. The deformity of the sternum, rib cartilage, and part of the rib cage sunken into the spine, resembling a funnel, is called funnel chest. The compression symptoms produced by funnel chest are somewhat manifested as mild dyspnea, thinness, and inactivity. Some patients appear to be active but cannot sustain it, have poor exercise endurance, and have only minimal lung capacity. Respiratory infections often occur, and occasionally one side of the lung is dysplastic, all caused by compression of the heart, lungs, and esophagus. In addition to thoracic deformity, there are often special signs such as anterior neck flexion, anterior tilting of both shoulders, mild hunchback and protruding abdomen. This deformity often worsens progressively and should be treated with surgery as soon as possible. Nuss believes that the best time to operate for funnel chest is from 6 to 12 years old, but now it is generally believed that it can be relaxed to 5-15 years old, and older patients can also be treated surgically. Due to the large incision, bleeding and trauma of traditional surgery, Nuss, an American physician, has been experimenting with the principle of thoracic bone plasticity in children and adolescents since 1987 and systematically reported a new type of minimally invasive funnel chest correction in 1998. The advantages of this procedure are small incision, small trauma, no bone amputation, maintaining the integrity and stability of the thorax, less bleeding, correcting the appearance of the thorax and effectively improving the cardiopulmonary function, and good postoperative prognosis.