We experienced 48 operations in 46 surgical patients of bronchiectasis admitted to the Department of Thoracic and Cardiovascular Surgery of Jeonbug National University Hospital from January, 1975 to August, 1982. Among 46 patients, 27 patients [59%] was age group between 21 to 30 years. Common symptoms were cough with sputum, hemoptysis, dyspnea, fever and chilliness, and chest pain. The duration of the symptoms was variable between below one year and above 10 years. The most frequent associated disease, probably the cause of the bronchiectasis, was secondary bacterial infection after viral infection. The left lower lobe and lingular segment was involved most frequently, and the most frequent pathologic type was mixed type [40%]. Single lobectomy, and combined lobectomy and segmentectomy were performed in 77% of the patients. Bilateral resection was performed in three patients with good result. In those patients, the isolated pulmonary function test on each side of the lung performed 2 month later primary lung resection could make them be prevented from pulmonary insufficiency after secondary lung resection. The results were good except two patients who developed pulmonary insufficiency and chronic empyema with bronchopleural fistula.