How long a lung cancer patient can live is related to the stage of lung cancer, that is, whether the lung cancer is early or advanced. It is also related to the type of lung cancer pathology, such as small cell lung cancer or non-small cell lung cancer. The survival time of lung cancer is also related to various factors such as the treatment plan of lung cancer and the usual condition of the patient. Usually, for early-stage lung cancer, surgery can achieve cure. For advanced lung cancer that has lost the chance of surgical treatment, the survival time is related to the treatment modality: 1. if conservative treatment is adopted, the expected survival time is about 3-6 months; 2. if chemotherapy is adopted, the expected survival time is about 10 months; 3. if targeted drug therapy is adopted, the expected survival time is about 1 year, and some can reach 2-5 years; 4. if immunotherapy or Combination of multiple therapies will further improve the survival time of patients. With the discovery of more therapies, the survival time of advanced lung cancer patients has been significantly improved than before.