Abstract:The result of experimental study on the antimicrobial effect in vitro of the decoction,water soluble ingredients and liposoluble ingredients of Anuqitabiao shows that decoction and water soluble ingredients have certain inhibitory effect on all the tested bacteria,while the liposoluble ingredients do not,indicating the antimicrobial ingredients to be water soluble.The result of antimicrobial experiment in vivo shows that neither different concentrations nor different separated parts of the decoction have any obvious protective effect on the pneumonococci infected or staphylococciaureus infected mice.