a plate for inkjet computer - to - plate and an inkjet printing method are disclosed . the plate is obtained by coating adhesive on the surface of metallic base followed by coating ink repulsive liquid , and a polymer film can be further covered on the obtained plate as protective layer . the adhesive improves the adhesion force between the metallic base and the ink repulsive layer , and the obtained ink repulsive layer is not sticky to the printing ink during printing . therefore , without undergoing the treatments of electrolytic graining and anodizing , the plate of the present invention can achieve excellent printing durability and high resolution , thereby avoiding serious environmental pollution of the waste acid solution and waste base solution produced in the process of electrolytic graining and anodizing .