Tuberculosis is one of the critical diseases with priority of the State's infectious disease prevention.This research,based on the collection and analysis of the cases cured by "feilaokang" and a fine result for symptomatic treatment experiment in vitro,make a further research of bacteriostasis in vivo.The pathological section examination has also been made,including HE coloration and Z-N coloration examination.The result indicate that there is a clear effect,for some indicators,on infected mouse for middle does and a clear effect,for all indicators,on infected mouse for high does.This result would be the very foundation for the further research of screening for MDR-TB with effect by "feilaokang" and concluding for the antibacterial coverage and antibacterial material basis.