According to a pull-on absorbent article (1) of the present invention including a front panel (2A), a rear panel (2B), and an absorbent assembly (3) fixed as bridging therebetween, each of the front panel (2A) and the rear panel (2B) includes a body portion (20a, 20b) and an extension portion (21a, 21b) being stretchable in the diaper lateral direction, each of an upper rear extension portion (B4) and a portion of the front panel corresponding to the upper rear extension portion (B4) has a larger contraction stress in the article lateral direction per unit length in the article longitudinal direction than a contraction stress of a lower rear extension portion (B5) while the extension portion (21b) of the rear panel (2B) is sectionalized into the upper rear extension portion (B4) and the lower rear extension portion (B5).
