An absorbent article having a thickness direction, a widthwise direction and a lengthwise direction which are perpendicular to one another, wherein an absorbent body (10) thereof has liquid-absorbing fibers. The absorbent body (10) has a folding guide line (LB) that guides in a manner such that folding occurs, projects toward the skin-side in the thickness direction, and is oriented in the lengthwise direction. The absorbent body (10) has a section (10p1) containing the folding guide line (LB) and sections (10p2) that do not contain the folding guide line (LB) and are positioned on both sides of the folding guide line (LB) in the widthwise direction. When measuring stiffness using a Gurley method stipulated by JIS L1085, the stiffness of the sections (10p2) not containing the folding guide line (LB) is 1.64 mN or higher, and the stiffness when applying the pendulum of the Gurley tester to the section (10p1) containing the folding guide line (LB) from the non-skin side in the thickness direction is 1.36 mN or higher.