It mainly describes a non-sanding color eraser and its preparation method.The eraser has stronger permeability of erasing color,and the spraying primer coating does not affect the adhesion between layers.The color can be adjusted with various types of oily color concentrate,pure flavor nano color paste,pure flavor transparent color paste,grace color paste and penetrant color paste.It can be directly rubbed,brushed,sprayed on solid wood,pasted white billet or closed primer to complete the bottom coloring.The product has good odor,good filling,good compatibility with color,and does not affect the interlayer adhesion.