To prevent a pattern from shading off when a product is formed by pressing to form a decorated layer simultaneously by a method wherein a decorated pattern is prevented from shading off gradually by wearing by friction or the like when an FRP formed product is decorated.

A decorated layer 14 wherein decorated paper in which a specific pattern 20 is applied to a surface of paper 18 as a base material is buried in a translucent thermosetting resin layer 22 is laminated by making the pattern surface upward on a FRP main body 12. Further, a protective layer 16 wherein a glass fiber cloth material 24 is buried in a translucent thermosetting resin layer 26 is laminated as a surface layer on the decorated layer 14.