By using ground storage water to moisturize after needle method, 146 accessions were evaluated for resistance to common bacterial blight of common bean in the greenhouse. The results showed that the inoculation was reliable. Combined with moisturizing of ground storage water after inoculation by needle method, we found 2 resistant, 50 moderately resistant, 81 susceptible and 13 high susceptible accessions of germplasm resources. This paper provides a reference method to evaluate resistant resources to common bacterial blight of common bean. The inoculation technique could be used as a basal identification method of seedling stage resistance to common bacterial blight in the greenhouse.