Researches have found out that plant sterol could reduce total cholesterol and lower the density lipoprotein cholesterol in serum. And it had been approved as a new resource food by our country in 2010. This paper briefly introduced the properties,sources and physiological functions of plant sterol. At the same time,we summarized the processes of separation and extraction of typical plant sterol,as well as the modification research and progress of research of plant sterol oxidation products. We put emphasis...