To suitably transfer body fluid permeated through a surface sheet to an absorber.

A disposable diaper 100 includes: the absorber 3 wherein an absorber core 31 is covered with a liquid-permeable covering member 32; and a liquid-permeable top sheet 1 provided on a skin side of the absorber. The covering member includes: a second sheet 32a and an upper sheet 32b covering the absorber core from the top sheet side; and a lower sheet 32c covering the absorber core from the opposite side to the top sheet. Peripheral parts of the second sheet and the upper sheet, and a peripheral part of the lower sheet are stuck, and the second sheet and the upper sheet are formed with at least one-side parts of a plurality of projecting parts d1, etc. projecting to the top sheet side and a plurality of recessed parts d2, etc. recessed to the absorber core side.