PROBLEM TO BE SOLVED: To appropriately raise three-dimensional gathers upon wearing.SOLUTION: In the disposable diaper, the three-dimensional gathers 60 include: a root part 65 fixed to a diaper inner surface； a projected part 66 projected from the root part 65； detachable parts 67 for the diaper inner surface, provided on both end parts in the anteroposterior direction of the projected part 66, respectively； a non-fixed free part 68 positioned between the front and back detachable parts 67 of the projected part 66； and an elastic flexible member 63 fixed to at least the distal end part of the free part 68 in the state of being extended in the anteroposterior direction.
