A endophtic bacteria strain 102 isloated from tomato plant has remarkable growth-promoting effect.It was test by germination,wheat coleoptile growth,pot experiments and field mini-plot experiments.The commom wheat coleoptile growth in vitro was significantly faster in the 102 dilution at rate from 50 to 200 times than in water.The seeds germination rate and root length of the green vegetable and tomato were significantly promoted by the bacterium 102.The result from pots experiment indicated that strain 102 also promoted green vegetable and spainch to grow significantly.The fresh weight of green vegetable and spainch were increased by 36% and 19%,compared to their controls.The result of field mini-plot experiments also showed that strain 102 could remarkable increase the yield of green vegetable by 39% compared to the CK.