Congenital funnel chest is the most common skeletal deformity of the chest wall in children, accounting for more than 90% of the skeletal deformities of the thorax in children. The clinical manifestation of the disease is that the lower end of the sternal body is sunken inward with the saber process as the center along with the ribs on both sides, resembling a funnel, hence the name funnel chest. Its etiology is unknown, there are several theories: 1, unbalanced development of the thoracic ribs, the ribs squeeze the sternum; 2, the diaphragm foot is short, the diaphragm attached to the sternum is pulled inward; 3, genetic factors. Mild funnel chest, the impact on the circulation and respiration is not significant, severe funnel chest sunken sternum and ribs will compress the heart, lungs and other organs in the chest cavity, making the child prone to respiratory infections, seriously affect the heart and lung function, poor exercise endurance. These children are often ashamed to expose their chests in public, afraid to wear tank tops in summer, afraid to take baths in public bathrooms, afraid to swim in swimming pools, and even form isolated personalities. The surgical treatment of funnel chest has a history of more than 80 years, and it is only in the past 30 years that more experience has been accumulated. Most hospitals in China still use the traditional surgical methods. The traditional surgical methods for treating funnel chest mainly include rib shaping, sternal elevation, sternal rib elevation, sternal sternotomy with upper and lower vessels, sternotomy with rectus abdominis, sternotomy without sternotomy (Wada method), sternotomy with overlap, etc. The common disadvantages of these surgical methods are The Nuss procedure is the latest international minimally invasive method for the correction of funnel chest, which was pioneered by Dr. Nuss in 1997 and was first reported in the American Journal of Pediatric Surgery in 1998 in 42 cases. A 2 cm incision is made in the lateral chest wall of the child and a plastic plate is fixed behind the sternum with the assistance of thoracoscopy to complete the orthosis. The Nuss procedure, with its advantages of less trauma, fewer complications, better aesthetic appearance and effective improvement of cardiopulmonary function, has quickly spread around the world and is currently the most popular procedure internationally, favored by patients and medical personnel, and has gradually replaced other methods as the most promising one. Compared with the traditional funnel chest orthopedic surgery, this surgical method has the following advantages: 1, Nuss surgery does not need to remove the rib cartilage surgery trauma, plastic effect is good, the traditional surgery needs to remove both sides of the curved rib cartilage trauma, plastic effect is poor, 2, Nuss surgery bleeding less (5-10 ml), traditional surgery bleeding more (200-400 ml); 3, Nuss surgery surgery time is short, only 30-40 minutes, the traditional surgery requires 30-40 minutes, compared with 2.5-3 hours for traditional surgery; 4, Nuss surgery is aesthetically pleasing with no incision in the anterior chest and hidden scars, compared with a conspicuous incision in the middle of the chest for traditional surgery; 5, Nuss surgery has a fast recovery, simple postoperative care and low recurrence rate. According to foreign data, the surgery is not only suitable for children, but also for adults, and also for those who failed in other surgical methods. Children with funnel chest older than 3 years old are suitable for correction by this surgery.