To provide at a low cost a surface decoration bathtub colorful and rich in variation.

The surface decoration bathtub 1 is obtained by a polishing process of polishing the surface thereof to form a polished surface 2, a priming process of applying an epoxy-acrylic resin onto the same to form a primary coat 3, a cast molding process of arranging thereon decorations 7 such as shell or flowers and applying a transparent polyester or acrylic resin onto the same to form an embedded layer 4 in which the decorations 7 are embedded, and a final coating process of applying a heat resistant epoxyacrylic resin onto the same to form a protective layer 6.