Agaricus blazei Murill (AbM) is a kind of fungus used for food and medicine. Itexhibited a diverse bioactivities. Now, it has been used as an important nature source ofanticarcinogens, immunomodulators, antimutigens and bactericidal substances. Beausefungus submerged fermentation posess characteristics of low-cost, short-period and yearround producing, so , it has becoming to be a promising way to develop antitumorpolysaccharides from AbM. Few papers were reported about extraction, isolation,purification an...