Hemoptysis is a very common clinical manifestation in lung cancer patients, which is not necessarily related to survival. Once hemoptysis is detected, patients need to clarify whether it is caused by lung cancer or other infectious diseases, including tuberculosis, bronchial dilatation, lung abscess and so on. After hemoptysis, it is necessary to see whether the patient belongs to central lung cancer or peripheral lung cancer. If central lung cancer is diagnosed, it is necessary to consider whether early surgical treatment is possible. Once there is no distant metastasis and the indications for surgery are met, the primary lesion needs to be removed as early as possible. The survival period of patients is relatively optimistic, more than one year. If surgery is not possible and only radiotherapy, chemotherapy or other treatments can be given, the survival period of lung cancer patients is relatively short, within one year. If patients with peripheral lung cancer have hemoptysis and can undergo surgery, the prognosis is more optimistic than that of central lung cancer. At the same time, adjuvant chemotherapy and traditional Chinese medicine can effectively prolong the survival period of patients, and the longest survival period can be more than five years.