A method of manufacturing an absorptive article comprises a leg portion forming step for forming leg portion regions (1D) in a web (10) continuously supplied in the MD direction in a conveying device, and also comprises a folding step which, after the leg portion forming step, folds double the web such that a first half region (11) on one side of the center line in the CD direction is approached closely by or is superimposed by a second half region (12) which is on the other side. The folding step is configured such that the first half region (11) is conveyed on a conveying belt (122) driven in a state in which the conveying belt is horizontal relative to the surface on which the conveying device (folding device (100), for example) is installed and that the second half region (12) is folded to the first half region (11) side by a guide means (140) for guiding the second half region (12).
