Selective renal angiographies were performed on 15 cases of chronic advanced renal failure, who were admitted to the Hanyang University Hospital during the peiod of May 1976 to September 1977. 1. The cases examined were 10m ale and 5 female patients. Age distribution was broad, most in fourties of age. 2. The main symptoms were dyspnea, generalized edema, general weakness, nausea and vomiting. All of them were anemic. The blood pressure was normal in 1 case, minimally hypertensive in 4 cases, moderately or severely in 10 cases. Chest X-ray revealed cardiomegaly in 9 cases and pulmonary edema in 6 cases. The average values of BUN were 138.2mg/dl, serum creatinine, 20.82mg/dl, and hemoglobin, 6.89gm/dl. 3. Selective renal angiographies revealed abnormalities in all of the cases. The kidneys were shown to be small in 14 cases. With the size of the renal masses and the shape of the renal arteries, the diagnosis of chronic advanced renal disease were possible in these 14 cases. In ne case, one of the kidneys was enlarged, a finding which would have been difficult to prove by other methods. The autopsy of this case revealed renal tuberculosis with hydronephrosis. 4. The diameter of the renal arteries was small in all the kidneys examined. The interlobar arteries were abnormal in shape in all the cases: pruning, 85.2%, tortuosity, 66.7%, spiraling, 96.3%, segmental stenosis, 22.2%, ectasis, 29.6%, and crowding, 81.5%, The arcuate arteries and interlobular arteries were not able to be clearly delineated in most of the cases. The extrarenal vasculature was prominent in 44 per cent of the cases. 6. The selective renal angiography may be a valuable method of screeing out the cases of reversible renal failure.