1. An absorbent article comprising a topsheet disposed on the surface side, opposite to the skin bottom sheet disposed on the surface side not opposite to the skin and elongate in the longitudinal direction, the absorbent element positioned between the topsheet and backsheet, wherein the absorbent element includes a portion located from the abdomen and placed on the part of the users stomach, a part positioned by the back and disposed by the users back, and a crotch portion arranged between the part placed stomach-side portion and being placed back-side, the absorbent article further comprising liquid-permeable intermediate l ist between the absorbent element and a topsheet, wherein: the absorbent member includes an absorbent core comprising an absorbent polymer, the absorbent core comprises a block zone in which a plurality of unit structures being disposed in a longitudinal direction from a part positioned by the stomach, to a part positioned by the back block structure includes a plurality of projection sections, each of which has a protruding shape and which have a relatively high basis weight and trough h Asti that surround each protrusion portion and which have a relatively low basis weight, the protruding portions and trough portions of the absorbent core are integrally formed intermediate sheet covers the section of the unit area of the absorbent core, the length of the insert in a longitudinal direction less than the length of the block Bn zone
