Cerebrovascular disease, coronary heart disease and tumor are the three major diseases that cause human death, and cerebrovascular disease tops the list of these three diseases because of its high incidence, death rate, prevalence and disability rate. According to statistics, the natural population incidence rate of cerebrovascular diseases in China is 114-187 per 100,000 people per year, and the prevalence rate is 253-620 per 100,000 people. The mortality rate is 50-100 per 100,000; 50-70% of patients develop disability. There are about 2000-3000 new cases in our province every year. Due to the relative lag in the development of neurointerventional technology in our province, especially in the basic hospitals and related departments are backward in the understanding of such diseases, about 90% of patients stay in the basic hospitals due to the lack of timely and effective treatment, resulting in death and disability. In the following, we will introduce the scientific knowledge of several common cerebrovascular diseases respectively. Intracranial Aneurysm (AN) is a common disease that endangers human health. The pathogenesis is not well understood, but is generally believed to be related to structural dysplasia of the cerebral vascular wall, hypertension, and genetics. Aneurysm rupture often presents as a subarachnoid hemorrhage. Intracranial aneurysms account for 85% of spontaneous subarachnoid hemorrhage, and cerebral vasospasm, rebleeding and acute hydrocephalus are life-threatening complications after rupture of intracranial aneurysms, with a high mortality and disability rate. The current treatment methods are surgical clamping and endovascular embolization. With the advancement of endovascular treatment techniques, the indications are becoming broader and the results are more certain. A recent multicenter collaborative bulk case prospective study showed that the mortality and disability rates of endovascular treatment were significantly lower than those of surgical clamping, which is inextricably linked to the development of new techniques and materials for endovascular treatment. More and more physicians and patients are now choosing this minimally invasive, efficacious and reliable treatment method. In developed countries, more than 80% of patients choose endovascular intervention. Our department adopts various new technologies such as electrolytic spring coil embolization, balloon-assisted spring coil embolization and stent-assisted spring coil embolization for interventional treatment of intracranial aneurysms, and has achieved good results. The success rate of these techniques is over 95%, and they have the advantages of minimally invasive, quick recovery and short hospitalization time. Our department treats more than 200 patients with cerebrovascular disease annually, and is the largest treatment center for cerebrovascular disease in Gansu Province. Preoperative