A diaper manufacturing apparatus 500 according to the present invention includes: an oscillating mechanism 520 disposed on a top-sheet continuous body 121 while oscillating leg gathers 32； an outer holding mechanism 650 holding the leg gathers 32 disposed in a predetermined waveform by the oscillating mechanism 520； and a cutting mechanism 540 having a blade section cutting the leg gathers 32 held by the outer holding mechanism 650. The outer holding mechanism 650 holds, out of a region formed in a predetermined waveform, an outer end region OT which includes an outer end 32e of the leg gathers 32 and on which an adhesive is not applied. The blade section is disposed inside, relative to a crossing direction, the outer end region OT held by the outer holding mechanism 650.
