To provide a method for producing a three-dimensional shaping molded product with which a fluid molding material filled in an elastic molding mold can more efficiently be solidified in a short time and a contribution to an improvement in productivity of the three-dimensional shaping molded product can be made.

The production of the molded product comprises a filling step (a) of filling the fluid molding material in the elastic molding mold, a solidifying step (b-1) [(b-2)] of heating or cooling the molding material 3 filled in the elastic molding mold and a mold releasing and taking out step (c) of expanding the elastic molding mold under reduced pressure and taking out the solidified three-dimensional shaping molded product 4. In the solidifying step (b-1), the elastic molding mold filled with the molding material 3 and made of silicone rubber is dipped in a heating medium or a cooling medium to thereby carry out the heating or cooling.