The present invention aims to provide an absorbent article provided with the leak-barrier walls improved so that good fitness is assured and leak sideways of excretion such as menstrual blood can be reliably prevented. An absorbent article 1 has a shape being relatively long in a longitudinal direction and comprises a top layer, a bottom layer, an absorbent core 4 having a shape being relatively long in the longitudinal direction and a pair of leak-barrier walls 5, 5. Each of the pair of leak-barrier walls 5, 5 comprises a proximal wall section 50 adapted to stand up on the top layer, a first overhang section 51 extending outward in a transverse direction from the vicinity of the upper end of the proximal wall section 50 and provided with a plurality of first elastic members 51b attached under tension thereto so as to extend in the longitudinal direction of the absorbent article 1 and a second overhang section 52 formed below the first overhang section 51 so as to extend outward in the transverse direction from the vicinity of the upper end of the proximal wall section 50 and provided with second elastic members 52b attached under tension thereto so as to extend in the longitudinal direction of the absorbent article 1 wherein the second overhang section 52 has stiffness higher than stiffness of the first overhang section 51.
