A press-forming tool (1; 2; 3; 4) comprising: a punch which includes a punch portion and a plate portion which are configured to transfer a shape to a blank material; a die which is paired with the punch and which opposes the punch portion; a wrinkle suppression mold (25a, 25b; 25b, 25e; 25c, 25d) which includes a first surface (31a, 31b; 31c, 31d) which opposes the plate portion and which comes into contact with the plate portion at a press-forming ending point, a second surface (32a, 32b; 32c, 32d) which opposes the die and which holds the blank material along with the die, and a third surface (33a, 33b) which is continuous between the first surface (31a, 31b; 31c, 31d) and the second surface (32a, 32b; 32c, 32d) and which opposes the punch portion via a gap; a pressure receiving portion (30a, 30b; 30c, 30d) which includes a groove portion (35c, 35d) and which is disposed on the first surface (31a, 31b; 31c, 31d) of the wrinkle suppression mold (25a, 25b; 25b, 25e; 25c, 25d); and a wrinkle suppression force increasing portion (16a, 16b; 16a-16f) which is disposed on the plate portion so as to oppose the first surface (31a, 31b; 31c, 31d), which protrudes toward the pressure receiving portion (30a, 30b; 30c, 30d), and which generates a reaction force in a direction opposite to a pressing direction when being pressed in the pressing direction in an end phase of a press forming. a punch which includes a punch portion and a plate portion which are configured to transfer a shape to a blank material; a die which is paired with the punch and which opposes the punch portion; a wrinkle suppression mold (25a, 25b; 25b, 25e; 25c, 25d) which includes a first surface (31a, 31b; 31c, 31d) which opposes the plate portion and which comes into contact with the plate portion at a press-forming ending point, a second surface (32a, 32b; 32c, 32d) which opposes the die and which holds the blank material along with the die, and a third surface (33a, 33b) which is continuous between the first surface (31a, 31b; 31c, 31d) and the second surface (32a, 32b; 32c, 32d) and which opposes the punch portion via a gap; a first surface (31a, 31b; 31c, 31d) which opposes the plate portion and which comes into contact with the plate portion at a press-forming ending point, a second surface (32a, 32b; 32c, 32d) which opposes the die and which holds the blank material along with the die, and a third surface (33a, 33b) which is continuous between the first surface (31a, 31b; 31c, 31d) and the second surface (32a, 32b; 32c, 32d) and which opposes the punch portion via a gap; a pressure receiving portion (30a, 30b; 30c, 30d) which includes a groove portion (35c, 35d) and which is disposed on the first surface (31a, 31b; 31c, 31d) of the wrinkle suppression mold (25a, 25b; 25b, 25e; 25c, 25d); and a wrinkle suppression force increasing portion (16a, 16b; 16a-16f) which is disposed on the plate portion so as to oppose the first surface (31a, 31b; 31c, 31d), which protrudes toward the pressure receiving portion (30a, 30b; 30c, 30d), and which generates a reaction force in a direction opposite to a pressing direction when being pressed in the pressing direction in an end phase of a press forming.