1.The greatest danger of pneumothorax is tension pneumothorax, which compresses the mediastinum and causes circulatory respiratory disorders leading to death. 2, spontaneous pneumothorax is mostly seen in the rupture of alveoli, and a few due to the primary lesion invasion of the pleura. The principle of treatment is first chest intubation, closed drainage of the chest cavity to ensure the safety of the patient’s life, and then surgery or conservative treatment according to the situation. 3.When the pneumothorax rupture is large, the puncture tube is too thin to remove the intrathoracic gas in time, or even close the drainage during sleep, which may cause irreversible danger. 4.Standard pneumothorax intubation treatment is done by closed drainage poke card, placing disposable chest drainage tube with outer diameter of 8mm and inner diameter of about 5mm, connecting to water seal bottle, and fixing it after seeing gas discharge. 5.Postoperative fluoroscopy, adjust the position of drainage tube if necessary. For primary pneumothorax more can be reopened at that time. 6.After 7 days of no gas elimination and no obvious residual cavity and fluid accumulation after surgery, the drainage tube can be clamped for 24 hours and no recurrence, and the tube can be removed. Recurrence or persistent postoperative exhaust for 2-3 days with signs of infection should be selected for surgical treatment.