A slicing printing method for color 3D model is disclosed. The method comprises following steps of: building a color 3D object into a coloring model; dividing the coloring model into a plurality of color cells, wherein a shell of each of the color cells forms an accommodating space configured to accommodate a color material; setting respectively the color of the color material accommodated by each color cell according to the color of the color 3D object and generating a printing color data corresponding to the color 3D model; generating a printing object data associated with the printing color data according to the color cells. The disclosed example can effectively realize the printing of the color 3D model through the inkjet manner via generating color cells configured to accommodate color materials.