Auxiliary intake of some functional foods could improve the efficacy of diabetes, and even reduced the amount of drugs. Natural functional food was rich in resources, toxic and side effects were small, and was simple, easy to be accepted by people, had great potential for the treatment of diabetes. The hypoglycemic property and mechanism of some functional ingredient from natural foods was summarized, the present situation of the development of the hypoglycemic health food in China was expounded, and the research direction of the hypoglycemic property was prospected.