Bronchiectasis is a chronic disease that occurs in young adults with recurrent symptoms of coughing, coughing up pus, hemoptysis and fever. If left untreated, the lesions can gradually expand and seriously affect the patient’s life. The traditional treatment method is lobectomy, but since the lesions are confined to some bronchial segments of the lungs, lobectomy may be too extensive or some of the diseased bronchi may not be completely removed. If lobectomy is performed, the extent of resection may be too large or some of the diseased bronchi may not be completely removed. The principle of lung segmental bronchial resection for multisegmental bronchiectasis is that since the pathological changes of bronchiectasis are mainly in the bronchial wall, lung segmental bronchial resection is used to preserve as many healthy lungs as possible and completely remove the lesions by taking advantage of the anatomical and physiological characteristics of alveoli with extensive lateral branch ventilation. Experimentally, the remaining lung with bronchial exclusion was well inflated, and no solid changes, hematoma, non-distension, or emphysema occurred.