In order to study the effects of Ojuck-san on hyperlipidemia, we divided the rats into three groups(normal group, control group & sample group) and performed the experimental research. Hyperlipidemia rats were induced by oral for 14days. The sample group was administerd the extract of Ojuck-san for 14 days and control group was administerd equal dose of oral. And then we measured the amount of serum Total cholesterol, Triglyceride, LDL-cholesterol, HDL-cholesterol, Phospholipid, Cholinesterase and Cardiac risk factor. The results were as follows : 1. Ojuck-san showed decreasing effects on Total cholesterol, Triglyceride, LDL -cholesterol, and Phospholipid level in serum significantly(p<0.001). 2. Ojuck-san showed increasing effects on HDL-cholesterol level and Cholinesterase in serum significantly(p<0.05). 3. Ojuck-san showed decreasing effects on Cardiac risk factor in serum significantly.(p<0.001). According to the above results, Ojuck-san showed significant decreasing effects on hyperlipidemia, and it is considered that it is appropriate to apply for hyperlipidemia.