The invention provides an underpants-type disposable diaper which can prevent beauty deterioration and air permeability reduction in a case that a display sheet is made of a resin film. An underpants-type disposable diaper in which a display sheet (25) comprising a resin film is provided between a front outer shell (12F) and/or a rear outer shell (12B) and an inner shell (200), wherein a cover nonwoven fabric (13) provided with many holes (14) penetrating the front and rear at intervals is interposed at least from the crotch-side edge of the outer shell overlapping the display sheet (25) to between the display sheet (25) and a liquid-impermeable sheet (11) on the waist-opening (WO) side, and deterioration of the appearance of the display sheet and reductions in the air permeability are both prevented by the inner surface and outer surface of the cover nonwoven fabric (13) being bonded by a hot-melt adhesive (25H) to the respective opposing surfaces.