To provide a diaper formed in such a manner that there is no need for once opening a hook tape by inverting an adhesive tape at the time of wearing of a diaper body and the peeling of the adhesive tape and the detachment of the hook tape may be prevented by tensile force at the time of replacement.

A hook tape 5 is mounted to the inside surface side of the flat part of a rear body 3 of the diaper body and its one end is projected to an outer side from the flap part. The adhesive tape 12 is mounted to the outside surface side of the flap part and about half length portion thereof is projected to the outer side of the flap part. The projecting end of the hook tape 5 is fixed to this projecting part to form a connecting part 13. The projecting end of the adhesive tape 12 is turned back and is self-adhered, by which a clamping part 14 is formed. The portion outer than the connecting part 13 is turned back and the entire part of the turnback thereof may be used as the clamping part. At this time, the clamping part is so formed that the hook tape 5 is exposed to the inner side from the turnback part.