The aim is to explore the regulatory effect of soybean lecithin on serum lipids in rats.50 Male Wistar rats were fed with conventional food for 5 days and then randomly assigned into five groups according to serum TC level, namely low dose group, medium dose group, high dose group, hyperlipidemia group and neg. control group resp.All animals except the controls were fed with high-fat diet, at the same time soybean lecithin was administered orally to all the animals (10mL/kg).After 30 days the animals were weighed and blood samples were collected for anal. of blood lipid level.Compared with hyperlipidemia group, 1.2g/(kg·BW) and 2.4g/(kg·BW) dose of soybean lecithin significantly reduced the serum TC level of hyperlipidemia rats(P<0.05).Soybean lecithin can regulate(lower) the level of serum lipids in rats.