The 2012 guidelines for the treatment of aneurysmal subarachnoid hemorrhage in the United States firstly emphasize the concept of multidisciplinary cooperation in the treatment of aneurysms, and require that the treatment plan for aneurysms should be developed by experienced cerebrovascular surgeons and neurological interventionalists in accordance with the patient’s condition and the condition of the aneurysm; secondly, it is recommended that patients with aneurysms in whom endovascular treatment and surgical craniotomy are appropriate should be considered for endovascular interventions firstly. Secondly, it is recommended that endovascular intervention be considered first for patients with aneurysms for whom both endovascular treatment and surgical craniotomy are appropriate. The 2013 Chinese expert consensus on endovascular intervention for intracranial aneurysms recommends that: (1) any aneurysm that ruptures and bleeds should be treated as early as possible to reduce the risk of rupture and bleeding; (2) symptomatic unruptured aneurysms should also be treated as early as possible to avoid further aggravation of symptoms, which could be life-threatening; (3) interventions are recommended for asymptomatic unruptured aneurysms with a diameter of ≥5 mm. If the aneurysm diameter <5 mm should be based on the morphology, location, number of aneurysms and the patient's condition, etc. Aggressive intervention is recommended for patients with aneurysms with cysts, multiple, located in the anterior communicating artery, posterior communicating artery, and the posterior circulation, with life expectancy of >10 years, accompanied by a history of aSAH, with a family history, or requiring long-term oral anticoagulation and antiplatelet drugs; (4) For untreated patients with unruptured aneurysms, it is Dynamic follow-up is recommended, and intervention is recommended if the aneurysm is found to be progressively enlarged and morphologically altered in the course of follow-up; (5) The indications for intervention can be appropriately relaxed and more active treatment strategies can be adopted for patients with unruptured aneurysms that lead to psychological disorders and seriously affect their work and life; (6) The treatment plan for the aneurysm (clipping or intervention) should be developed based on the characteristics of the patient and the aneurysm and other factors; (7) The treatment plan for the aneurysm should be developed based on patient characteristics and aneurysm characteristics and other factors. (7) For patients with aneurysms that are technically feasible for both craniotomy and intervention, endovascular intervention is recommended; (8) Patients with aneurysms in the posterior circulation, patients of advanced age (>70 years old), patients with low spontaneous aSAH scores (WFNS classification V/VI), and patients with cerebral vasospasm should be prioritized for interventional therapy.