The thoracoscopic treatment of pneumothorax is thoracoscopic wedge resection of pulmonary bullae with pleural fixation. The specific method is to make an incision about 3 cm long in the fourth intercostal space in the anterior axillary line, and then perform a single-hole thoracoscopic wedge resection of pulmonary bullae followed by pleural friction. It is generally good to do pleural friction at the apex of the chest because the apex of the chest often has a good site for pneumomegaly and is prone to pneumomegaly rupture. The purpose of doing pleural fixation is to make the dirty pleura and the wall pleura adhere, and after the adhesion, even if there is rupture of pulmonary blister again, there will not be extensive pneumothorax again, so there will be no need for special treatment. Therefore, thoracoscopic wedge resection of pulmonary blisters with pleural fixation is the best surgical method to treat pneumothorax.