A method of manufacturing an absorptive article has a step of arranging latch members (40a, 40b) in a region (30A) forming each flap of a succession of flaps composing a flap continuum (130), the latch members (40a, 40b) being arranged so as to be located on opposite sides of a centerline (C1), which extends in a CD-direction of a flap line, of the region (30A) and being engageable with predetermined regions a step of forming a cut line (50) along the centerline (C1) a step of joining together a rear waistline member continuum (120a) composed of a succession of rear waist members and the flap continuum (130) composed of the succession of flaps, the continuum (120a, 130) being joined together such that the centerlines (C1) are perpendicular to a MD-direction of a body line and a step of breaking the cut line (50) on the body line.