Abstract: The inducible culture of Gordona amarae was carried out by such heavy metal ions as Cu²⁺, Pb²⁺ and Hg²⁺ and studied. The result showed that all of these ions can foster the strain to enhance the activation of adsorption of Pb²⁺ and Hg²⁺, with no evident adsorption of Cu²⁺ observed but microbiological antagonism against Cu²⁺ found when adding Cu²⁺ of which the concentration is 5.72 mg/L in the culture medium, i. e., the rate of adsorption of Hg²⁺ increases from 39% to 98% but that of Cu²⁺ decreases from 51% to 35%. Such a difference leads to the adsorption process to be selective. All these indicate that the selectively inducible culture is an effective way to the biosorption of heavy metal ions in industrial waste-water treatment.