Abstract: Fifty-seven csses of postoperation renal cell carcnoma receiving radiotherapy in our department between 1970 and 1986 were reported, among whom 36 being male, 21, female. All patients were aged from 19 to 75 years. Thief three-year survival rate was 62.5% and 5-year, 58.9%. The significance of radiotherapy of this condition was evaluated. The authars believe that patients at late stage are not perfectly proper candidates for this kind of treatment. Morcover, radiotherapy has been proved effective in prolonging, patient's life andimproving their life quality. Carefully selected patients have shown reduction in recurrence rate and increase in survival rate.