To provide a decorative laminated sheet capable of utilizing spot welding as an ornament pattern, its working device and working method.

The working device of the decorative laminated sheet is provided with the welding means 1 consisting of a welding power source 7, a welding transformer 7a and a spot welding electrode 8, a keyboard 2, a controller 3, a memory 4 as a storage means storing pattern data, an X axis transfer motor 5a and Y axis transfer motor 5 as a feeding means, a pressing device 6 and a work table 9. Spot working flaws by this working device are utilized to manufacture the metallic, decorative and laminated sheet.