30 cases of senile benign reno -arteriolar sclerosis were treated by Huang Qi Gu Jing Yin and 30 cases treated by routine western medicine were used as control. Results showed that of the 30 cases in the treatment group

18 cases （60%） were cured

9 （30%） markedly effective and 3 （10%） ineffective

the total effective rate being 90%; In the control group

10（33. 3%） were cured

9 （30%） markedly effective and 11 （36. 7%） ineffective

the total effective rate being 63. 3%. The therapeutic effect in the treatment group was superior to that in the control group （P<0. 01）. It is suggested that Huang Qi Gu Jing Yin is an effective therapy for this disease.