Abstract： Objective To observe the treatment effect of endovascular embolization on intracranial aneurysms combined with hemorrhagic moyamoya disease (MMD). Methods The clinical features and outcomes of 8 patients with intracranial aneurysms combined with MMD, performed endovascular embolizafion in our hospital from January 2002 to February 2010, were retrospectively analyzed. The aneurysms in 6 patients with major artery aneurysm were successfully embolized with Guglielmi detachable coil, and the other 2 (the peripheral artery type) with n-butyl cyanoacrylate (NBCA). Results In the 6 patients performed embolization with Guglielmi detachable coil, 3 got complete embolization, 2 vestigital of the aneurysm neck, 1 partial embolization and all the parent arteries were unobstructed. In the 2 patients performed embolization with NBCA, no imaging was noted on the parent arteries and aneurysms, and no cerebral infarction appeared in the distal blood supply region.Conclusion For MMD patients with aneurysms, we can treat the aneurysms with endovascular embolization safely and effectively.