Abstract: A digital ink jet printing process method comprising following procedures: 1. Choose the basic material, 2. Pre-process the basic material, 3. Print out graphics on basic materials directly; and, 4. After process on the surface of basic materials to protect the graphics on the surface of the basic materials; based on the procedures, choose the proper basic material to have the basic material with more variable colors, the graphics, colors are not limited, more saturated colors, better scratch-proof and water-proof; the graphics can stay on basic material longer with good weather fastness and grade in deposit standard.