Lentinan,a kind of β-1,3 polyglucosan,is isolated from fruiting body of lentinusedodes.This paper overviews the recent advances in study on antitumor and hypoglycemic effects of lentinan.It is pointed out that lentinan can enable host cells to generate antitumor immune response by stimulating and enhancing immunological function response,by this way the lentinan can control and kill tumor cells.Further more,the lentinan can reduce blood sugar level by regulating glycometabolism,promoting biosynthesis of hep...