Abstract: Fusarium solani f.sp.phaseoli was taken as target bacteria, the Bacillus strains with strong antagonistic ability were screened from the rhizosphere（surrounding） soil of the diseased snap bean by the method of plate confrontation culture and control effect in greenhouse, in order to obtain the biocontrol resources of Fusarium root rot.The results showed that a strain of antagonistic Bacillus WJ-126 was screened and identified as Bacillus velezensis.Under the condition of artificial inoculation in greenhouse, the relative control effect of this strain on Fusarium root rot of snap bean was 60.92%.