To provide a press molding device 1 and a press molding method which are safe and can efficiently press-mold a primary molding 110.

A press molding device 1 and a press molding method include a stationary mold 80 which fixes a primary molding 110, and a plurality of drawing molds 81 which stepwisely molds the primary molding 110, and further include a disc part 31 which is mounted with the drawing molds 81, rotary shaft parts 35 which have wire parts 37a, 37b, 37c and are arranged at intervals approximately same as those between adjacent drawing molds 81, a rotational drive part 40 which rotates the disc part 31, a non-contact displacement sensor 5 which detects the wire parts 37a, 37b, 37c, a control device 70 which stops the rotation of the disc part 31 when the wire part 37a is detected, a first actuator 4 which moves the disc part 31 downward, an inner periphery processing tool 55 which has a processing blade 56 forming a female spline 115, and a second actuator 51 which moves the inner periphery processing tool 55 downward.