A method for producing a center pillar reinforcement by means of press-forming of a metal blank, the center pillar reinforcement comprising a body which is lengthy and partially curved substantially in a bow shape and two substantial T shape sections (12, 14) formed at both end portions in the longitudinal direction of the body, and thereby a panel having a substantial I shape in a plan view being formed, the body having a substantially hat-shaped cross section formed by a curved and lengthy top sheet, two vertical walls (20, 22) connecting with both edge portions (18a, 18b) in the width direction of the top sheet, and two outward flanges (24, 26) connecting with the respective two vertical walls (20, 22), the two substantial T shape sections (12, 14) each having a top sheet, and two curved vertical walls (20, 22) connecting with the top sheet, and the two curved vertical walls (20, 22) of at least one of the two substantial T shape sections (12, 14) each having a height which decreases gradually toward a direction directed from the body to the substantial T shape section (12, 14), characterized in that the center pillar reinforcement is produced by performing a first step for producing a first intermediate formed product by press-forming the blank by using a first press-forming device for drawing, the device comprising a die, a blank holder for clamping the blank together with the die, and a punch for pressing the blank into the die, the first intermediate formed product having a body section and portions that are formed into the two substantial T shape sections (52, 54), the body section being formed by some parts of the top sheet and each of the two vertical walls in the body, and a part of the top sheet and each of the two vertical walls in one substantial T shape section of the two substantial T shape sections (52, 54), and the portions which are formed into the two substantial T shape sections (52, 54) excluding the some parts of the top sheet and each of the two vertical walls in the one substantial T shape section, and a second step for, by using a second press-forming device for bend-forming, the device comprising a punch, a pad having a butting surface facing to the protrusion of the punch, and a die for pressing the first intermediate formed product onto the punch, pressing the first intermediate formed product in a state in which at least part of each of portions formed in the two substantial T shape sections of the intermediate formed product is clamped by the pad and the punch, wherein, in the case where the uppermost position in a region in the longitudinal direction where the body section is formed is defined as a longitudinal direction 0% position, the value of the longitudinal direction % is defined so as to be increased with the decrease in the longitudinal direction, and the lowermost position in the region in the longitudinal direction is defined as a longitudinal direction 100% position, the height of the vertical walls in the body section formed in the first intermediate formed product by the first step is at most 20% of the height of the vertical walls (20, 22) of the center pillar reinforcement at the longitudinal direction 0% position; at least 60% of the height of the vertical walls (20, 22) of the center pillar reinforcement at the longitudinal direction 20 to 60% positions, and at most 20% of the height of the vertical walls (20, 22) of the center pillar reinforcement at the longitudinal direction 100% position.