To simplify mold equipment, to shorten the number of processes and to simplify the handleability of a skin subjected to vacuum molding, in a method for molding a laminated molded object obtained by laminating the skin to the surface of a core material with a cushioning layer.

A dummy core material 50 is set to a lower mold 30 and a skin sheet S is subjected to vacuum forming from the upper side thereof. Thereafter, an upper mold 40 having a cutting blade 41 is matched with the lower mold 30 to apply trim cutting treatment to the vacuum-formed skin 13. This skin 13 is held to the upper mold 40 by vacuum suction force and the upper mold 40 is operated to be raised. Subsequently, the core material 11 with a normal cushioning layer 12 is set in place of the dummy core material 50 on the lower mold 30 and the upper mold 40 is clamped to bond the skin 13 to the core material 11. Therefore, the vacuum molding process of the skin 13 and the bonding process for bonding the skin 13 to the core material 11 can continuously be performed in the same mold 20.