The invention belongs to the field of biotechnology and provides a bacterium and the chondroitinase ABC produced by it. The present invention relates to a kind of Acinetobacter ( Acinetobacter sp.C26), the strain has the characteristics of simple nutritional conditions, easy cultivation, and short generation time; the use of the strain of the present invention to produce chondroitin sulfate has the characteristics of high activity, good stability, and low cost, which can realize large-scale cultivation and meet the requirements of industrial applications.