PURPOSE: To obtain a high depth sensation, by a method wherein almost a half as much as of a transparent molding material forming a transparent layer on the occasion of hardening by containing an unsaturated polyester resin and mineral fine particles is supplied, on which cloth to which a pattern is imparted is put, on which the remainder transparent molding material is supplied.

CONSTITUTION: Almost a half 2 as much as of a transparent molding material which contains unsaturated polyester resin and mineral fine particles and forms a transparent layer on the occasion of hardening is supplied on a mold face of a bottom force 12 under a state of mold break. Patterned cloth 3 or a porous sheet are put on the material, on which the remainder transparent molding material 4 is supplied. Then mold clamping is performed and compression molding of a molded product 5' is performed. Then mold break and demolding are performed and a patterned thick molded product which possesses a patterned layer within a wall of a bottom wall and is provided with a transparent resin layer on the patterned layer is obtained.