The study on cabbage promoting growth by the endophytic bacteria BS-2 (Bacillus subtilis) and it's mechanisms were investigated. The results showed that the strain could colonize inside of cabbage and promote growth of cabbage, the bacteria could stimulate growth of cabbage with different inoculating methods. The fresh weight and the dry weight of the plants were151.20% and 182.30% increased, and the bacteria, the bacterial culture suspension and secretion of the bacteria or their dilutions could promote gr...