Intracranial Aneurysm (AN) is a common health hazard. The pathogenesis of AN is not well understood, but it is generally believed to be related to structural dysplasia of the cerebral vascular wall, hypertension, and genetic factors. 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 high mortality and disability rates. The current treatment methods are surgical clamping and endovascular embolization. With advances in endovascular treatment techniques, the indications are becoming broader and the results 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 a variety of new technologies such as electrolytic spring-ring embolization, balloon-assisted spring-ring embolization and stent-assisted spring-ring embolization for interventional treatment of intracranial aneurysms, and has achieved good results. The success rate of these techniques is over 95%, with the advantages of minimally invasive, quick recovery and short hospitalization time. Our department treats more than 160 patients with cerebrovascular disease annually, and is the largest treatment center for cerebrovascular disease in Gansu Province.