PROBLEM TO BE SOLVED: To improve a wearing feeling in a so-called bridging type disposable diaper.SOLUTION: A front-body exterior body 1 and a back-body exterior body 2 respectively include body areas 12, 22 and extension areas 13, 23. The body areas and extension areas of the front-body exterior body and the back-body exterior body respectively include multiple elastic flexible members 14, 15, 24, 25 at intervals in a length direction, that are extended in a diaper width direction. In the front-body exterior body, the interval of the multiple elastic flexible members arranged in the body area is narrower than the interval of the multiple elastic flexible members arranged in the extension area. In the back-body exterior body, the interval of the elastic flexible members arranged in the body area is narrower than the interval of the elastic flexible members arranged in the extension area.