Neurointervention is a clinical medical science that investigates the use of intravascular catheter manipulation techniques, supported by computer-controlled digital subtraction angiography (DSA) systems, to diagnose and treat lesions involving the blood vessels of the human nervous system for therapeutic purposes such as embolization, lysis, dilation, and shaping. At present, interventional treatment has become one of the main means of clinical treatment in modern hospitals, and increasingly becomes the first method of selective treatment. 1.Whole brain angiography can detect vascular lesions that cannot be detected by CT and MRI, such as the site and length of stenosis, cerebral aneurysm, cerebral arteriovenous malformation, site of vascular occlusion, etc., and provide accurate basis for interventional treatment. 2.Endovascular stenting: Cerebral ischemia is often related to cerebral arteriosclerosis stenosis, and long-term cerebral arteriosclerosis can lead to chronic brain damage. Active treatment of cerebral artery stenosis can prevent and treat stroke, enlarge the diameter of the narrowed local cerebral artery, improve cerebral blood supply, and prevent and treat cerebral ischemia caused by cerebral artery stenosis to a certain extent. 3.Interventional thrombolysis: It is the most effective treatment technique in the early stage of cerebral infarction, which can reopen the occluded cerebral artery to avoid the adverse consequences of death or aphasia or hemiparesis in patients with cerebral infarction after hospitalization in the past; it is also used for the treatment of cerebral venous sinus thrombosis to relieve headache, vomiting and other symptoms of cranial hypertension. 4.Interventional embolization of aneurysm: Rupture of cerebral aneurysm can cause cerebral hemorrhage or subarachnoid hemorrhage, with high mortality and disability rate. Embolization of cerebral aneurysm can prevent rupture and bleeding to a certain extent, and has the advantages of minimally invasive, no craniotomy, small trauma and fast recovery. The greatest advantage of endovascular intervention in neurology is that it avoids the tissue trauma caused by craniotomy, and its wide adaptability, simple operation, small trauma, precise efficacy and few complications have unparalleled advantages of other means of diagnosis and treatment, allowing patients to have more chances of recovery.