Both the inhibition zone diameter and the minimum inhibitory concentration of common microorganisms affected by tea polyphenols of different concentrations were measured in this paper.The results showed that the effect of tea polyphenols on inhibiting bacteria is strong,that the effect on inhibiting yeast and mold is weak,that the minimum concentration of inhibiting Escherichia coli is 40g/L,that the minimum concentration of inhibiting Bacillus subtilis is 80g/L,and that the minimum concentration of inhibit...