To fix the wing-like flap smoothly and firmly to the underwear with a simple operation and to prevent it from being distorted and displaced during wearing.

In the absorbent article 1, an absorbent member 4 lies between the liquid permeable top sheet 3 and the back sheet 2, and a front wing-like flap W to be fixed rolling in the crotch part of underwear when being fixed and a back wing-like flap WB for holding hips to be attached inside the underwear are formed respectively on both sides. On the upper surface of the top sheet 3 of the front wing-like flap W and/or back wing-like flap WB, a pocket sheets 20 and 25 to form a pocket space P opening toward the center in the width direction of the absorbent article 1 are provided.