An absorbent article which can be fixed to an undergarment without creating wrinkles, a release paper sheet is composed of a first release paper sheet covering a main body displacement-preventing adhesive layer and wing displacement-preventing adhesive layers and a pair of second release paper sheets respectively covering seat displacement-preventing adhesive layers. When the article is applied to shorts, the first release paper sheet is removed, and the main body displacement-preventing adhesive layer and the wing displacement-preventing adhesive layers of the absorbent article are fixed to the shorts that are pulled down. Then, the shorts are pulled up and worn, and the second release paper sheets are removed to fix the seat displacement-preventing adhesive layers to the shorts.