The 128-slice computed tomography image showed that subarachnoid hemorrhage caused by ruptured cerebral aneurysm accounted for 65.6%, of which ruptured saccular aneurysms accounted for the highest rate of 80.9%, and ruptured fusiform aneurysms accounted for a small percentage of 19.1%, no case of subarachnoid hemorrhage due to arteriovenous malformation has been recorded.