Abstract: A nonwoven fabric web (3) is mounted on a three-dimensional molding surface (10) of a molding mold (1), and water is sprayed onto this nonwoven fabric web (3) by a water jet (2). Thus, the nonwoven fabric web (3) is pressed against the molding surface (10), and fibers (32) of the nonwoven fabric web (3) are entangled with each other while the nonwoven fabric web (3) is molded so as to conform to the three-dimensional shape of the molding surface (10), whereby a nonwoven fabric molded product (5) of a three-dimensional shape is produced.