The five-year survival rate of lung cancer with T2N0M0 stage is 50%~70% after treatment, and the specific survival period is related to the lung cancer disease and physical condition. Lung cancer is a malignant tumor originating from the bronchial mucosa or glands of the lungs, and its development is related to smoking, heredity, environment and other factors. According to clinical TNM staging, T2N0M0 indicates that the lung tumor is ≥3cm, or spreads to the hilum with pulmonary atelectasis, without lymph node and distant metastasis, which is early lung cancer. At this time, according to the specific pathological type, surgery, radiotherapy, chemotherapy and other therapies can be selected, and after active treatment, the five-year survival rate of patients is 50%~70%, and the prognosis is better in general. It is recommended that patients go to regular hospitals in time to receive standardized treatment.