A 62-year-old man with chronic renal failure had impending rupture of a right internal iliac aneurysm. He had a rate blood type (Type:AB and Rh+. Antibody: anti-Fya, anti-E, and anti-P1), so homologous blood transfusion seemed impossible. While blood pressure was reduced by bed rest and drug administration, 800ml of autologous blood was obtained within four weeks before operation. Furthermore the intraoperative autotransfusion method was used. Aneurysmectomy was successfully performed without homologous blood transfusion.