Thirty-seven patients of aortic aneurysm underwent operations during January 1984 December 1987 at our hospital. Twenty-six patients had aneurysms involving ascending aorta, three patients had aneurysms involving both ascending aorta and abdominal aorta. and eleven patients had aneurysms involving descending thoracic or abdominal aorta. Among the patients who had aneurysms involving ascending aorta, annuloaortic ectasia with aortic regurgitation were thirteen and all of these underwent ascending aorta graft replacement + AVR with composite graft. The patients who had aortic regurgitation due to ascending aortic dissection were three and all of these underwent intraluminal ringed graft insertion at ascending aorta + aortic valve resuspension. Intraluminal ringed graft insertion was safe, simple, and fast method in the operation for aortic aneurysm. Eleven patients were underwent this operation and the results were good. Major causes of death of the patients who underwent aortic aneurysm operation are underlying cardiovascular diseases or delayed rupture of the aneurysm or complications related newly appeared aneurysm. Among our patients, dissection progressions were appeared in two but neither severe nor complicated. And no patient died from delayed rupture of aneurysm or complications related newly appeared aneurysm. All patients were followed up via OPD and were controlled hypertension or heart failure if present. Operative mortality is 18.9ulcornera in all, 23% in patients who had aneurysms involving ascending aorta and 7.6` who had aneurysms involving descending thoracic or abdominal aorta. Comparing with other reports, our operative mortality is still high but improved steadily. So we recommend aggressive surgical management of the aortic aneurysm.