Primary pneumothorax is mostly seen in young people, and more than 95% of them are formed by the rupture of pulmonary blisters or pulmonary blisters in the apical part of the lung. Recurrent pneumothorax brings a lot of inconvenience to patients’ life and work, and the chest X-ray examination required for medical treatment also increases the X-ray radiation to patients’ body. Active treatment of the cause to reduce the recurrence of pneumothorax is crucial for young people. Currently, thoracoscopic pneumonectomy is the accepted mainstream modality for the treatment of spontaneous pneumothorax and pulmonary bullae. In clinical work, some patients have concerns about the treatment after learning the cost of disposable consumables needed in the procedure, but there is actually a way to finish the treatment of pulmonary bullae in an economical mode under thoracoscopy, i.e., the treatment of pulmonary bullae by silk ligation, even when encountering bullae with wide base The ligation of pulmonary blisters is accomplished by suturing the purse string. Shenzhen Yun, Department of Thoracic and Cardiovascular Surgery, Aviation General Hospital of China Medical University A single silk thread can be ligated to treat pulmonary blisters, which in most cases allows endoscopic suture cutting closure device staple clips to stand aside. In the Department of Thoracic Surgery, Aviation General Hospital, silk-wire ligation treatment of pulmonary blisters has developed a routine mode of saving money for pneumothorax patients, while applying a new standardized pleural fixation method to reduce postoperative pleural exudation and early removal of chest drainage tubes.