PROBLEM TO BE SOLVED: To provide an absorbent article that prevents an end flap from being turned up while following a motion of a body without reducing comfort.SOLUTION: In this absorbent article, an absorber 3 is interposed between a liquid-permeable top sheet 1 disposed on the surface side and a liquid-impermeable back seat 2 disposed on the rear side. The absorbent article includes a front end flap FF and a back end flap BF without absorber, formed in front and back end parts. The absorbent article includes: on the back side of the liquid-impermeable back sheet 2, front end reinforcement sheets fixed astride a portion forming the front end flap and a portion corresponding to the back side of the absorber in the back-and-forth direction and back end reinforcement sheets fixed astride a portion forming the back end flap and a portion corresponding to the back side of the absorber. The front end reinforcement sheets and the back end reinforcement sheets do not extend outside the back sheet rim.
