Abstract: Through the method of changing Sr concentration in solid medium gradually, 26 strains bacteria and 20 strains actinomyces were isolated from the strontium contaminated soil. Four strains of strontium-resistance bacteria have been selected by the further studies in liquid culture. Magnifications of four bacteria concentration are all more than 30 times and adsorption rates of Sr are more than 20%. The study results show that the bacteria’s optimum growth condition are pH=6.0-7.5, θ=20-40 ℃, ρ₀（Sr）=0-2.0 g/L. Identification results show that the microorganism are all subject to Bacillus according to analysis results of 16S rDNA.