Abstract: DTH.HC50 and experiment of phagocytosis ofmacyophage are investigated to appraise Cellular immunity Humoral immunity and Nonspectific immunity.Results showed that the degree of swelling of swelling of ear obviously increased in Ig/kg-dose group compared with that in the control group,the serum hemolysin obviously increased in 5g/kg-dose and 10g/kg-doseguoup;the coefficient and index of phagocytosis markedly increased in the experiment group too .It concluded that Queenbee brood markedly enhances immunity fullction in mice.

Key words: Queenbee brood immunity function