Objective: To investigate the treatment method for type II endoleak after endovascular abdominal aortic aneurysm repair (EVAR). Methods: The clinical data of 3 patients with relatively severe type II endoleak after EVAR treated in the Department of Vascular Surgery of Xiangya Hospital from 2011 to 2016 were retrospectively analyzed. Of the patients, one case with a continuous enlargement of the aneurysmal sac after hybrid operation (reconstruction of the visceral vessels plus EVAR) for thoracoabdominal aortic aneurysm, a retrograde endoleak from the celiac axis was found by CTA examination; the other two cases had a retrograde endoleak from inferior mesenteric artery after EVAR for abdominal aortic aneurysm. Results: The patient with retrograde endoleak from the celiac axis was treated with Interlock detachable coil embolization, and the other two patients were treated with conventional coil embolization. Embolization was successfully performed and the endoleak disappeared in the 3 patients. Conclusion: Embolization using different approaches is an effective method for type II endoleak after EVAR.