Coloring stainless steel is a kind of corrosion-resistant and ornamental industry material. Whereas, the oxide film on stainless steel is sensitive to heat. At about 200, the oxide film would be oxidized or dehydrated. With lesser cutting force and no thermal influence on target material, AWJ may be a suited method in cutting coloring stainless steel. In this paper, an experimental study on cutting coloring stainless steel by abrasive waterjet was carried out. By analyzing macroscopic features of kerfs, a damage model was established and a principle to optimize process parameters was presented.