Abstract: In order to study effects of chewable tablets of royal jelly on immunity functions of mice,the mice were administered with the chewable tablets at the doses of 0.167,0333 and 0.999 g/kg bw for 30 days by intragastric infusion,respectively. The results showed that the dose of 0.333 g/kg bw and 0.999 g/kg bw can strengthen the delayed type hypersensitivity of mice,and increased the quantity of antibody forming cells of mice. The dose of 0.999 g/kg bw can strengthen mononuclear macrophage carbon clearance and NK cells activity of mice,and has no significant effects on body weight increase,ratio of spleen weight to body weight,ratio of thymus weight to body weight,HC50,tlymphocyte transformation ability of mice induced by ConA and ability of chicken-red cells phagocytosis. So it is concluded that the chewable tablets of royal jelly can strengthen immunity functions of mice.

Key words: chewable tablets of royal jelly, strengthen, immunity