Knowledge of the renal arterial and venous anatomy is an essential to the renal transplantation. Followings are the results from analysis of the renal artery and vein in 85 candiates of renal transplant dornor. 1. Bilateral single renal artery was 70.6%. 2. double renal artery was 18.8%, and single renal artery associated with accessory artery was 10.6%. 3. Extrarenal bifurcation of the single renal artery was 70.0%. 4. average length of the single renal artery was 40mm of right renal artery and 33mm of left renal artery. 5. level of the origins of both renal artery form abdominal aorta was as follows: Same level of both renal arteries was 50.0%, right renal artery was higher than left in 36.7%, and left was higher in 13.3%. 6. Bilateral single renal vein was observed in 84.7%, and remainder was double renal vein and 1 case of triple right renal veins. 7. Nut cracker phenomenon was observed in 22.6%. 8. Extrarenal confluence of lobar renal veins was 20%. 9. In 3 cases, nutcrac er phenomenon was associated with extrarenal confluence of lobar renal veins. 10. Inferior adrenal artery was not opacified in 36.5% of renal arteriogram