Objective To observe the clinical effects of Yishen Tongluo Xiedu decoction in the treatment of early diabetic nephropathy( DN). Methods 64 patients with early DN were selected and divided into two groups according to the random number table method. 32 cases in treatment group were treated by Yishen Tongluo Xiedu decoction. 32 cases in control group were treated by valsartan capsules. Both groups were given the corresponding basic treatment at the same time,and the curative effect was measured after 12 week...