A method of manufacturing an absorptive article has a step of arranging engaging members (40a, 40b) in a region (30A) forming each flap of a succession of flaps composing a body (130), the engaging 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 cuttable line (50) along the centerline (C1) a step of joining together a body (120a) composed of a succession of rear waist members and the body (130) composed of the succession of flaps, the bodies (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 cuttable line (50) on the body line.
