Congenital funnel chest is the most common chest deformity in children, and its diagnosis is obvious at a glance, that is, the lower part of the anterior chest wall is funnel-shaped (or bowl-shaped) depression centered on the saber process, and the condition gradually worsens with age, which obviously affects the physical appearance. The child is prone to low self-esteem after understanding, and more seriously, this depression will compress the lungs and heart, directly affecting the child’s cardiopulmonary function, resulting in decreased activity tolerance, easy to frequent respiratory infections, and even the development of obstructive pulmonary disease, if not surgically corrected, the child’s quality of life and life expectancy are significantly lower than normal. Since the incidence of congenital funnel chest is only 1-3 per 1,000, many clinicians lack sufficient knowledge of the disease. When children seek treatment, a significant number of them are told that it is due to calcium deficiency and are treated with calcium supplements, and parents neglect to follow up on the condition, resulting in delays. Since a child’s funnel chest is a congenital abnormality and not an acquired calcium deficiency, no amount of calcium supplementation will help. After the diagnosis of funnel chest, all children need surgery, except for those with very mild disease such as funnel volume <20mlwho need to be followed up and observed. There are various surgical methods for funnel chest, and after a lot of clinical practice, we are currently carrying out thoracoscopic-assisted congenital funnel chest correction (Nuss procedure), which is the internationally preferred procedure because of its small trauma, operation time of about half an hour, no blood transfusion, small postoperative scars, convenient care and good orthopedic effect. Most scholars believe that since older children with funnel chest have developed cardiopulmonary dysfunction, the later the treatment, the less likely they are to recover, and that funnel chest has not only a physiological impact on the child, but also a psychological impact of varying degrees. The earlier the surgery, the better the outcome. Some scholars believe that surgery should be performed at the age of 1.5 years, but our experience in the treatment of funnel chest for more than 10 years shows that the orthopedic effect is most desirable at the age of 3-6 years, but if the condition is serious, the age of surgery should be advanced.