| In order to improve the salt tolerance of salinized farmland crops, the growth promoting potential strains were isolated from the rhizosphere of maize grown in high salt soil. Under the stress of NaCl, we determined their effects on germination rate, germination potential, growth promotion and electrical conductivity of maize. The results showed that Bacillus subtilis NY-06, B. megaterium YJ-1 and B. amyloliquefaciens YJ-3 had good beneficial effects. Under the stress of 1.5% NaCl and 2.0% NaCl, the 3 strains increased 16.3%, 9.5%, 16.7%, and 18.9%, 8.3% and 19.9% of the plant height of maize, 28.8%, 21.5%, 34.0% and 29.2%, 22.8% and 36.3% of the fresh weight of above-ground parts, 32.7%, 15.5%, 18.2% and 51.9%, 58.6% and 56.8% of root fresh weight, respectively, decreased 1.1%, 9.2%, 8.0% and 6.4%, 9.5% and 14.2% of the relative conductivity of maize leaves, respectively, when maize plants were treated with the strains fermentation broth by drenching. The 3 Bacillus strains have the application potential for maize in salty soil.