A processing method for printing information of powder-bed type 3D printing, comprising: a) generating a color image for a printing layer, wherein the color image comprises color information having a plurality of ink droplets; b) generating an adhesive image for the printing layer, wherein the adhesive image comprises adhesive information having a plurality of adhesive droplets; c) adjusting the adhesive information of the adhesive image according to the color information of the color image, through executing an "exclusive or" calculation to the plurality of ink droplets of the color information and the plurality of adhesive droplets of the adhesive information, comprising: c01) analyzing distribution information of the plurality of ink droplets according to the color information; c02) obtaining positions which are distributed with the ink droplets and other positions which are not distributed with the ink droplets; c03) deleting the adhesive droplets upon the positions which are distributed with the ink droplets in the adhesive information; c04) retaining the adhesive droplets upon the positions which are not distributed with the ink droplets in the adhesive information; and c05) generating an adjusted adhesive image according to the adhesive information which is processed with a deleting action; d) generating a final printing image via combining the color image with the adjusted adhesive image; and e) controlling a sprayer of a 3D printer to respectively jet the ink droplets and the adhesive droplets upon corresponding positions in accordance with the final printing image. a) generating a color image for a printing layer, wherein the color image comprises color information having a plurality of ink droplets; b) generating an adhesive image for the printing layer, wherein the adhesive image comprises adhesive information having a plurality of adhesive droplets; c) adjusting the adhesive information of the adhesive image according to the color information of the color image, through executing an "exclusive or" calculation to the plurality of ink droplets of the color information and the plurality of adhesive droplets of the adhesive information, comprising: c01) analyzing distribution information of the plurality of ink droplets according to the color information; c02) obtaining positions which are distributed with the ink droplets and other positions which are not distributed with the ink droplets; c03) deleting the adhesive droplets upon the positions which are distributed with the ink droplets in the adhesive information; c04) retaining the adhesive droplets upon the positions which are not distributed with the ink droplets in the adhesive information; and c05) generating an adjusted adhesive image according to the adhesive information which is processed with a deleting action; c01) analyzing distribution information of the plurality of ink droplets according to the color information; c02) obtaining positions which are distributed with the ink droplets and other positions which are not distributed with the ink droplets; c03) deleting the adhesive droplets upon the positions which are distributed with the ink droplets in the adhesive information; c04) retaining the adhesive droplets upon the positions which are not distributed with the ink droplets in the adhesive information; and c05) generating an adjusted adhesive image according to the adhesive information which is processed with a deleting action; d) generating a final printing image via combining the color image with the adjusted adhesive image; and e) controlling a sprayer of a 3D printer to respectively jet the ink droplets and the adhesive droplets upon corresponding positions in accordance with the final printing image.