Frequent hemoptysis during treatment of advanced lung cancer is often due to bleeding caused by the lesion invading blood vessels of trachea. Lung cancer in advanced stage belongs to malignant tumors with poor prognosis, and the lesion invades the submucosal blood vessels of trachea, leading to bleeding, and it is relatively difficult to deal with. Frequent hemoptysis should be promptly applied with hemostatic drugs to avoid the phenomenon of hemorrhage causing aspiration or even asphyxia, which may endanger the patient’s life at any time. If the effect of drug hemostasis is not satisfactory, hemostatic treatment can be carried out under intervention to embolize blood vessels as far as possible to control bleeding. Therefore, advanced lung cancer often causes hemoptysis due to invasion of blood vessels, and the prognosis is often not very satisfactory, so it must be treated in time to avoid misaspiration.