This paper reports reaction of Bacillus lichendermis on the inhibitor vacations. The result Shows that, inhibition of the 500?g/mL of cephalosporin 1000?g/mL of penicillin, 500?g/mL of streptimycin, on the Bacillus Licheniformis,Whe the Phis 7.0. This provides a sicentific basis for using the preparation of Bacillus licheniformis.