The invention relates to a formulation for inhibiting foot odors caused by microorganisms and a method therefor. Primarily, a mixed powder consists of Bacillus subtilis and organic powder can be applied to feet. The Bacillus subtilis of the mixed powder obtained from natural bacterial strains and their nourish substances are organics, thus it will not damage users’ health in use. Furthermore, the mixed powder can be applied to users’ feet, users’ socks or interiors of users’ shoes to have more conveniences in use, so as to increase the practicality and efficiency for the whole implementation.本發明係有關於一種可抑制造成腳臭微生物的配方與方法,其主要係由枯草桿菌[Bacillus subtilis]與有機質粉末所混合組成混合粉末,使得即可將該混合粉末塗佈與足部相接觸;藉此,由於該混合粉末中的枯草桿菌取自於自然界的菌種及其滋養物為有機物,使得其在使用上不會對使用者健康造成危害,且在使用時可將該混合粉末塗佈在使用者之足部,或係塗佈於使用者所穿著之襪子、鞋子內部,使得其在使用上更具便利性,而能在其整體施行使用上更增實用便利性者。(1)‧‧‧混合粉末