Abstract: Objective To retrospectively analyze the postoperative morbidity of patients with complex intracranial aneurysms treated by stent-assisted coiling and investigate the causes and treatment strategy of postoperative morbidity. Methods 62 SAH patients with intracranial aneurysm were treated by stent-assisted coiling, 53 cases of single aneurysms, 9 cases of multi-aneurysms (8 cases of 2 aneurysms, 1 cases of 3 aneurysms) , amount to 72 aneurysms, 71 aneurysms were treated by stent-assisted coiling. Results Completed embolization 53 cases were completed with embolization partial embolization (74.64%) , Nearly all embolization 17 cases were nearly all embolization (23.94%) , partial embolization and 1 case was s (1.42%) . According to GOS, 52 patients with a score of GOS 5, 6 patients with a score of GOS 4, 3 patients with a score of GOS 3, 2 patients with a score of GOS 1. 58 (93.5%) patients survived favorably. 9 patients with complications (14.5%) , 3 patients with acute thrombosis; 2 patients with rupture of aneurysms during surgery; 3 patients with cerebral angiospasm; There was no obvious abnormality during the surgery in 1 patient, and there was a focal ischemic change followed by a mild neurological deficiency. Conclusions Stent assisted coil embolization of intracranial ruptured aneurysm is safe, effective and feasible, but we should improve clinical skills, summarize the analysis in the clinical operation experience of clinical treatment so as to reduce complications. Timely and correct treatment is also very important when complications occur.