An absorbent article, such as a sanitary napkin, a pantiliner or an incontinence pad, which improves diffusion property of a body fluid and maintains a stable absorption amount. In FIG. 3, a sanitary napkin (1) includes an absorber (4) including an upper layer sheet (10) disposed at a skin side, a lower layer sheet (11) disposed at a non-skin side, and a highly water-absorbing polymer (12) disposed between the upper layer sheet (10) and the lower layer sheet (11). The upper layer sheet (10) is provided with a plurality of protruding portions (14) bulging out to the skin side and forming space portions (13) to be filled with the highly water-absorbing polymer (12), and a joined portion (15) in which the upper layer sheet (10) and the lower layer sheet (11) are joined to each other intermittently on the peripheral edges of the protruding portions (14) along the circumferential directions.
