Abstract:Objective: To evaluate the effect of Buyang Huanwu decoction intervening prodromal symptoms of stroke. Method: We searched CNKI, VIP, WanFang (1990 to 2012) for randomized control trials about Buyang Huanwu decoction intervening prodromal symptoms of stroke. Result: According to the inclusion and exclusion criteria and assessment the quality of included trials, the extraction of effective data, 5 randomized clinical trials and their efficiency were evaluated, statistical analysis was conducted by using RevMan 4.2 software. ①Meta analysis showed that the efficiency of Buyang Huanwu decoction on prodromal symptoms of stroke was better than the control group[OR=4.44,95%CI(2.52,7.83)]; ② The indexes of high and low shear on hemorheology were evaluated, plasma viscosity was evaluated, Meta analysis results showed that the Buyang Huanwu decoction reduced the whole blood viscosity and plasma viscosity were better than the control group. Conclusion: The Buyang Huanwu decoction intervening prodromal symptoms of stroke was effective.