Lung cancer is a highly prevalent tumor. According to statistics, the incidence rate of lung cancer has ranked the first among all kinds of male tumors in large cities in China, and most lung cancer patients are men, with the ratio of men to women being about 3-5:1. Among the treatment methods of lung cancer, except for stage IIIb and IV, lung cancer surgery or striving for surgery should be the leading treatment, supplemented by radiation and chemotherapy based on different gender and pathological tissue types. According to domestic statistics, the three-year survival rate is 40% to 60%; the five-year survival rate is 22.9% to 44.3%. The following conditions can be selected for lung cancer surgery: 1. No distant metastasis (M0), including parenchymal organs, such as liver, brain, adrenal glands, bones, extra-thoracic lymph nodes, etc. 2. 2.Those who have not spread to adjacent organs or tissues in the chest, such as aorta, superior vena cava, esophagus and cancerous pleural fluid, etc. 3.No paralysis of the recurrent laryngeal nerve or phrenic nerve. 4.No severe cardiopulmonary hypoplasia or recent angina attack. 5.No serious liver and kidney diseases and severe diabetes. 1.Palliative resection (P): If there is still residual cancer in the chest cavity when lung cancer is surgically resected (confirmed by pathological histology), or if the resection is considered complete at the time of surgery, such as the bronchial stump is normal under the naked eye, but there are residual cancer cells under the microscope, it is called palliative resection. 2.Radical resection(R): Radical resection means complete removal of the primary cancer and its metastatic lymph nodes. Radical lung cancer surgery not only requires the operator to achieve radical treatment under the naked eye, but more importantly, the lymph nodes are completely removed and the bronchial stumps are also free of cancer cells under the microscope. According to the 1985 International Staging of Lung Cancer, lung cancer surgery can be used for all cases of stage 0, I, II and III lung cancer without contraindications to surgery. The principles of lung cancer surgical resection are: complete removal of the primary focus and lymph nodes with potential metastasis in the chest cavity, and preservation of normal lung tissue as much as possible. There are several types of surgical resection for lung cancer as follows: 1.Local resection: it refers to wedge-shaped cancer block resection and lung segment resection, i.e. local resection can be considered for very small primary cancer, old and weak with poor lung function or well differentiated cancer with low malignancy. 2.Lobectomy: For isolated peripheral type lung cancer confined to one lobe without obvious lymph node enlargement, lobectomy is feasible. If the cancer involves two lobes or middle bronchi, upper and middle lobes or lower and middle lobes can be resected. 3.Sleeve lobectomy and wedge-shaped sleeve lobectomy: this procedure is mostly used for lung cancer in the upper and middle lobes of the right lung. If the cancer is located in the lobar bronchi and involves the opening of the lobar bronchi, sleeve lobectomy is feasible; if the opening of the lobar bronchi is not involved, wedge-shaped sleeve lobectomy is feasible. 4, total pneumonectomy (generally try not to do right total pneumonectomy): where the lesion is extensive and the lesion cannot be removed by the above methods, total pneumonectomy can be carefully considered. 5.Romission and reconstruction: When the lung tumor exceeds the main bronchus and involves the ridge or the lateral wall of the trachea but does not exceed 2 cm: ①Romission and reconstruction or sleeve total pneumonectomy can be performed; ②If a lobe of the lung is still preserved, we will strive to preserve it, and the procedure can be determined according to the situation.