PROBLEM TO BE SOLVED: To provide a disposable diaper excelling in fitting property and hardly leaving marks of a stretch material on a wearers skin.SOLUTION: At least a part 16X of an outer body 16 constituting the disposable diaper 1A includes a sheet laminated part 66 in which at least three sheets, i.e., a first sheet 66a, a second sheet 66b and a third sheet 66c, are laminated, and a plurality of stretch materials 68 arranged in a stretched state between the sheets 66a, 66b, 66c constituting the sheet laminated part 66. At least one stretch material 68a out of the plurality of stretch materials 68 is arranged between the first sheet 66a and the second sheet 66b, and the other stretch material 68b other than the one stretch material 68a is arranged between the second sheet 66b and the third sheet 66c. The respective sheets 66a, 66b, 66c constituting the sheet laminated part 66 are joined to one another through the stretch materials 68a, 68b arranged between the sheets.
