In a pull-on absorbent article (1), pairs of joining sections (2) that join an absorbent main body (10) and a pair of belt sections (20) to each other are provided, one pair being disposed on a front side and the other pair being disposed on a rear side in a front-rear direction, the absorbent main body (10) including an absorbent body (12) and being provided in a vertical direction, the pair of belt sections (20) expanding and contracting in a lateral direction； a portion between the pair of joining sections (2) on the rear side does not expand and contract in the lateral direction； an expanding-contracting section (42) is provided closer than the absorbent body (12) to a non-skin side of a wearer； and, in at least the rear side, the expanding-contracting section (42) is provided at a central portion of the absorbent main body (10) in the lateral direction.
