A method for producing a press formed product from a starting material, the press formed product comprising a top panel part, vertical wall parts respectively extending from both ends of the top panel part, and ridge line parts between the vertical wall parts and the top panel part, and including a shape-changing part in a part of the ridge line parts, which is located in the middle of a lengthwise direction of the press formed product, the producing method comprising: a preparation step of preparing a metal sheet as the starting material; and a press working step of performing press working on the starting material by using a punch, and a pad and a die that are paired with the punch, and the press working step including: a first step of forming, by the punch and the pad, at least a region adjacent to the shape-changing part of a region of the top panel part, at least a region of the shape-changing part of a region of each of the ridge line parts, and at least a region adjacent to the shape-changing part of a region of each of the vertical wall parts and up to a predetermined height from a border between the vertical wall part and the ridge line part; and a second step of forming, subsequent to the first step, by the punch and the die, the remaining regions, with the starting material sandwiched between the punch and the pad. the press formed product comprising a top panel part, vertical wall parts respectively extending from both ends of the top panel part, and ridge line parts between the vertical wall parts and the top panel part, and including a shape-changing part in a part of the ridge line parts, which is located in the middle of a lengthwise direction of the press formed product, the producing method comprising: a preparation step of preparing a metal sheet as the starting material; and a press working step of performing press working on the starting material by using a punch, and a pad and a die that are paired with the punch, and the press working step including: a first step of forming, by the punch and the pad, at least a region adjacent to the shape-changing part of a region of the top panel part, at least a region of the shape-changing part of a region of each of the ridge line parts, and at least a region adjacent to the shape-changing part of a region of each of the vertical wall parts and up to a predetermined height from a border between the vertical wall part and the ridge line part; and a second step of forming, subsequent to the first step, by the punch and the die, the remaining regions, with the starting material sandwiched between the punch and the pad. a preparation step of preparing a metal sheet as the starting material; and a press working step of performing press working on the starting material by using a punch, and a pad and a die that are paired with the punch, and the press working step including: a first step of forming, by the punch and the pad, at least a region adjacent to the shape-changing part of a region of the top panel part, at least a region of the shape-changing part of a region of each of the ridge line parts, and at least a region adjacent to the shape-changing part of a region of each of the vertical wall parts and up to a predetermined height from a border between the vertical wall part and the ridge line part; and a second step of forming, subsequent to the first step, by the punch and the die, the remaining regions, with the starting material sandwiched between the punch and the pad. a first step of forming, by the punch and the pad, at least a region adjacent to the shape-changing part of a region of the top panel part, at least a region of the shape-changing part of a region of each of the ridge line parts, and at least a region adjacent to the shape-changing part of a region of each of the vertical wall parts and up to a predetermined height from a border between the vertical wall part and the ridge line part; and a second step of forming, subsequent to the first step, by the punch and the die, the remaining regions, with the starting material sandwiched between the punch and the pad.