The risk of cerebrovascular malformation surgery is approximately 3%-5%, depending on the degree of cerebrovascular malformation. One of the greatest surgical risks is the risk of rupture and bleeding during surgery, because vascular malformations, primarily, are vascular lesions. Excision, embolization, and clamping may be performed on the blood vessels, and this mode of operation may cause rupture of the blood vessels, resulting in intraoperative hemorrhage, so this is the greatest risk. There is also the possibility that the surrounding nerve tissue may suffer some strain damage, which may cause later complications such as epilepsy, numbness and weakness of the limbs, and speech dysfunction. There are also cases of epilepsy caused at a later stage by the process of abnormal discharge produced after the vascular malformation. Therefore, for cerebrovascular malformations, it is important to clarify the condition, operate carefully during the operation, focus on the principle of asepsis, and make corresponding changes in a timely manner after the operation, which is relatively good.