Abstract:Objective : To make a study of the influence of the intervene of traditional Chinese medicine on cytokine level in benign prostatic hyperplasia. Method : The patients were divided into treatment group (group A), control group (group B) and healthy group (group C) with the randomly compared researching method. Group A were given Qianliening Tang (QLNT), daily potion, two times a day. Group B were given Qianliekang, three times a day, three pills each time. The course of both treatment lasted for 8 weeks. Result : Before treatment, TNF-α, IL-17/IL-10, IL-4 in group A and B are obviously out of order compared with group C (P<0.01). After the treatment, TNF-α, IL-17 in group A decreased dramatically and IL-10, IL-4 increased, which shows great differences compared with those before treatment and with group B(P<0.01), but still can’t reach to group C level. Conclusion : Qian liening Tang can efficiently regulate the level of suppressive inflammatory cytokines and proinflammatory cytokines. It provides scientific experimental basis for clinical diagnosis and treatment of the disease.