The invention relates to a process for manufacturing multicolor cross textures on a
metal surface. In an
existing treatment process, the form and color are quite single, and the color is lack of the sense of depth and the stereoscopic impression. According to a method of the process, firstly, the surface of a
metal product shows an uneven effect, and the surface is subjected to oil removal,
rust removal and cleaning treatment; then, according to the pre-designed color
layers and sequence, mixed color
coating is sequentially sprayed to the surface of the
metal product through a pneumatic spray gun; then, the surface of the metal product is ground till irregular blocky metal base materials and multicolor cross texture patterns appear, and the surface of the metal product is washed out; and finally, clear
varnish is sprayed to the surface of the metal product, and the metal product with the multicolor cross texture patterns can be obtained after
drying. According to the method, the surface of the metal product generates the multicolor cross texture effect; colors are beautiful,
layers are rich, and
adhesion force is high; the color
layers are changeable and are not repeated; and artistic expressive force is high.