Abstract: Objective:To study the effects of different plant proteins on the lipids metabolism of the growing rats.（Methods:36） male Sprague Dawley rats were divided to four groups,they were fed semi-synthetic diet contained 20% casein（group 1）,20% soybean protein（group 2）,20% peanut protein（group 3） and 6% green leave protein add 14% casein（group 4） individually.After 5 weeks,the rats serum and liver cholesterol（TC）,triglyceride（TG）,high density liporotein（HDL-C） and low density liporotein（LDL-C） were determined.Results:The serum TC levels of the rats in four groups were no difference（P＞0.05）,but serum TG levels of group 3 was significantly lower than of the group 1.Serum HDL-C and LDL-C levels of the rats in group 2 were near to the rats in group 1,and serum HDL-C levels of the rats in group 3 and group 4 were significantly higher than in group 1 and group 2,but serum LDL-C levels were significantly lower than group 1（P＜0.01）.Compared with the rats of group 1,liver TG levels of group 3 and group 2 were significantly lower,liver TC levels of the rats in group 4 were significantly higher（P＜0.01）.Liver LDL-C levels in group 3 were significantly lower than in group 1.（Conclusion:）Peanut protein and soybean protein can decreased the TG levels in liver of rats,and peanut protein can significantly lowered down the TG and LDL-C levels in serum,LDL-C levels in liver,it also can improved the HDL-C levels in serum.