Survival period of lung cancer patients is related to the pathological type of lung cancer, clinical stage and physical condition of patients. Lung cancer patients with hemoptysis should first clarify the cause of hemoptysis, generally, small hemoptysis caused by non-lung cancer factors does not have much effect on survival, while large hemoptysis caused by advanced lung cancer may lead to shorter survival, or even lead to death of the patient within a few hours. The causes of hemoptysis in lung cancer mainly include non-tumor factors such as lung infection and lung cancer, which are clinically classified into minor hemoptysis and major hemoptysis according to the amount of hemoptysis. Generally speaking, hemoptysis caused by non-tumor factors such as pneumonia is mostly small hemoptysis, and after anti-inflammatory and hemostatic treatment, the symptoms will be completely relieved, which usually will not affect the survival period of lung cancer patients. Survival of lung cancer patients is mainly related to the stage. Early detection, early diagnosis and early treatment have good prognosis. If the lesions are small and have not yet metastasized at the time of diagnosis, the 5-year survival rate can reach 50%. However, hemoptysis caused by some advanced lung cancer patients generally has a greater impact on survival, and patients may die within a few hours due to hemoptysis. Patients with hemoptysis should seek medical treatment in time to identify the cause of the disease and then treat it in time.