A cold press forming method of one embodiment of the present invention includes a first press forming step in which a first formed component (7) having a hat-shaped cross-section part (8) is formed by draw forming in a cross-section orthogonal to the longitudinal direction with a cross-section depth of 10-30 mm in the longitudinal direction; a trimming step in which the first formed component (7) is trimmed to obtain a trimming component; and a second press forming step in which a portion of a top plate in the hat-shaped cross-section part of the trimming component is pressed with a pad, and a second formed component (9) is formed by foam forming, the second formed component including a product-shaped part (12) having a hat-shaped cross-section part (10), a step-shaped part (31) that is continuous with the outside of an area corresponding to a vertical side of a T shape in a connected T shape, and an inclined surface part (33) that is continuous with the outside of the step-shaped part (31) and rises diagonally upwards.
