NUSS surgery is a classic procedure for minimally invasive thoracoscopic treatment of funnel chest, with a simple and practical operation procedure, good surgical results, and a low level of patient pain. The main steps are as follows: 1. Measure the length of the orthopedic plate according to the shape of the patient’s chest. The measurement elements include: the length across the depression to the mid-axillary line on both sides, the depth of the depression, whether the depression is symmetrical, the thickness of the subcutaneous fat muscle, and the curvature of the anterior axillary line area. A soft dermatome is required for measurement. 2.Enter the operating room in the flat position, general anesthesia with tracheal intubation, cervicothorax and upper abdomen disinfection sheet. 3.The orthopedic plate is bent with a plate bender according to the shape of the patient’s chest, the plate is bent into the shape of an arch bridge, and both sides of the plate should fit the chest wall. 4.A 2-3 cm incision was made in the bilateral anterior axillary line to the mid-axillary line, respectively. The card is poked into the 7th intercostal space in the mid-axillary line, CO2 gas is fed in, and the degree of inward depression of the sternum and compression of the heart in the chest cavity is observed after entering the thoracoscope. From the right side of the incision into the penetrator through the posterior sternum in front of the heart through the gap, and then from the left side, pull through the traction band, pull the prepared orthopedic plate through the sternum after the plate turner flip the orthopedic plate, both sides of the plate are set with fixed pieces and fixed with wire, suture the muscle and fixed pieces, and then gradually close the incision. 5, into the mirror hole to place latex drainage tube, external drainage bottle, expand the lung exhaust. 6.After awakening from anesthesia, the surgery is completed.