<正> Objective:To evaluate the effect of Shen Rou Yang Zhen Decoction on blood rheology of the pa-tients with Piyinxu. Methoh:30 cases of patients with Piyinxu were treated with Shen Rou Yang Zhen Decoction.The blood rheology was detected before and after treatment. Results:30 cases of patients with Piyinxu were treatedfor one course of treatment resulting in obvious efficiency in 9 cases(30％), efficiency in 19 cases(63.33％), ineffi-