OBJECTIVE：To investigate the effects of Buyang huanwu decoction on lipid metabolism and hepatic tissue in hyperlipemia model rats. METHODS ：Male SD rats were randomly divided into blank control group ，model group ，positive control group （simvastatin 0.004 g/kg），Buyang huanwu decoction low-dose and high-dose groups （3.5，14.0 g/kg，by crude drugs），with 10 rats in each group. Except that blank control group was given water intragastrically ，hyperlipidemia mode of other groups was established by intragastric administration of fat emulsion according to the body weight. From the 21st day after modeling，the rats in each group were given water or fat emulsion in the morning and water or corresponding drugs in the afternoon for consecutive 20 days. After last medication ，the contents of TG ，TC，LDL-C，ALT，AST，LCAT，PLTP and HL in plasma were determined in each group ；the contents of LPL ，MTP and HMG-CoA redutase in liver tissue were also determined. The pathological changes of liver tissue were observed in each group. RESULTS ：Compared with blank control group ，the contents of TG ，TC，LDL-C，ALT and HMG-CoA reductase were increased significantly in model group （P＜0.05 or P＜0.01），while the contents of HL ，LPL and MTP were decreased significantly （P＜0.01）. Compared with model group ，the contents of TG ，TC， LDL-C and HMG-CoA reductase in administration groups as well as the contents of ALT ，AST in Buyang huanwu decoction low-dose and high-dose groups were decreased significantly （P＜0.05 or P＜0.01）；the contents of HL and MTP in administration groups as well as the content of LPL in positive control group were increased significantly （P＜0.05 or P＜0.01）. Pathological sections showed that the hepatocytes of model group were arranged irregularly ，and there was obvious cell steatosis. The hepatocytes in positive control group and Buyang Huanwu decoction high-dose group had almost no abnormal change compared with blank control gr oup，and there was a small amount of slight cell steatosis in Buyang Huanwu decoction low-dose group. CONCLUSIONS ： Buyang huanwu decoction has a 础。E-mail：zhang520-888@163.com significant lipid-lowering effect on hyperlipemia model rats ，which may be related to the regulation of lipid absorptiontransport and metabolism by regulating the expression of lipid 126.com metabolism related enzymes and transporter.