Cadmium resistant organism growing up to 2 mM cadmium was isolated from industrial sewage and identified as Bacillus sp. As the concentration of cadmium was supplemented more highly, it was shown that growing pattern had longer lag adaptive phase. Under various culture conditions, addition of cadmium induced a sharp increase in the amount of cellular polyphosphates. However, in the cell grown without phosphate, supplementation of cadmium resulted in an increase in the total amount of cellular sulfide. Meantime, from the analysis of total protein profile in the cell accommodated to cadmium, it was impossible to observe with the induction of the metallothionein-natured protein, cadmium-binding protein. When the isolated was cultivated in the presence of cadmium, cadmium was accumulated mainly in the fraction of cell wall. In electron microscopes of the cell cultured with cadmium, it was shown a number of electron dense particles that regarded as polymeric cadmium-phosphate complexes and cadmium-sulfide complexes, which were located in the cytoplasm and on the cell surface, respectively. These results revealed that cadmium detoxifying mechanisms of the isolated were carried out by insoluble polymeric cadmium-phosphate complexes, primarily and by insoluble cadmium-sulfide complexes secondarily or compensatively. From these results, the isolated could be utilized as a biological filter for removing the cadmium and the phosphate from the industrial sewage.