Bacillus strains were isolated from the rice straw of 7 districts in Korea, and almost all were identified as either B. amyloliquefaciens, B. pumilus, or B. subtilis. The correlation between the protease activity and ${gamma}$-glutamyltranspeptidase activity produced by the identified Bacillus spp. was positively correlated ($R^2{fallingdotseq}0.747$). Statistically, the B. subtilis species might be the most potent producer of protease and ${gamma}$-glutamyltranspeptidase of 3 identified Bacillus strains.