An absorbent article comprising an absorbent assembly that includes: a liquid-retentive absorbent member; a topsheet arranged on a skin-opposing surface side of the absorbent member; and a backsheet arranged on a non-skin-opposing surface side of the absorbent member, wherein: the absorbent assembly has: an excretion-section opposing region arranged so as to oppose an excretion section of a wearer when the absorbent article is worn; a front region arranged more toward the wearer's front side than the excretion-section opposing region; and a rear region arranged more toward the wearer's rear side than the excretion-section opposing region; the absorbent article has a longitudinal direction corresponding to the wearer's front/rear direction, and a lateral direction orthogonal to the longitudinal direction; the absorbent member has a layered structure which has absorbent sheets including pulp and which has a plurality of layers; the layered structure of the absorbent sheets includes: a central absorbent sheet located in the excretion-section opposing region; and a base absorbent sheet that is layered on the central absorbent sheet so as to extend outward from at least a portion of a peripheral edge of the central absorbent sheet; a plurality of longitudinal slits are formed in a dispersed state in the excretion-section opposing region of the absorbent member, each longitudinal slit being cut toward a thickness direction of the absorbent member and along the longitudinal direction; and in the layered structure, at least in the excretion-section opposing region, a portion of the plurality of layers of the absorbent sheets forming the layered structure is in a non-joined state in a section where each longitudinal slit is formed, an excretion-section slit region in which the longitudinal slits are arranged includes: a central slit region located in a central section of the absorbent member in the lateral direction; and side slit regions each located outward, in the lateral direction, of the central slit region; and in the central slit region, the longitudinal slits penetrate the layered structure including the central absorbent sheet and the base absorbent sheet. the absorbent assembly has: an excretion-section opposing region arranged so as to oppose an excretion section of a wearer when the absorbent article is worn; a front region arranged more toward the wearer's front side than the excretion-section opposing region; and a rear region arranged more toward the wearer's rear side than the excretion-section opposing region; the absorbent article has a longitudinal direction corresponding to the wearer's front/rear direction, and a lateral direction orthogonal to the longitudinal direction; the absorbent member has a layered structure which has absorbent sheets including pulp and which has a plurality of layers; the layered structure of the absorbent sheets includes: a central absorbent sheet located in the excretion-section opposing region; and a base absorbent sheet that is layered on the central absorbent sheet so as to extend outward from at least a portion of a peripheral edge of the central absorbent sheet; a plurality of longitudinal slits are formed in a dispersed state in the excretion-section opposing region of the absorbent member, each longitudinal slit being cut toward a thickness direction of the absorbent member and along the longitudinal direction; and in the layered structure, at least in the excretion-section opposing region, a portion of the plurality of layers of the absorbent sheets forming the layered structure is in a non-joined state in a section where each longitudinal slit is formed, an excretion-section slit region in which the longitudinal slits are arranged includes: a central slit region located in a central section of the absorbent member in the lateral direction; and side slit regions each located outward, in the lateral direction, of the central slit region; and in the central slit region, the longitudinal slits penetrate the layered structure including the central absorbent sheet and the base absorbent sheet.