An absorbent article having a longitudinal direction and a transverse direction, the article including: a topsheet lying on a side facing the wearer's body; a backsheet lying on a side opposite to the side facing the wearer's body; and an absorbent member (40, 50) interposedbetweenthetopsheet and the backsheet; wherein the absorbent member (40, 50) is formed with a through hole extending through the absorbent member (40, 50) from an upper surface thereof lying on the side of the topsheet to a lower surface thereof lying on the side of the backsheet, wherein: the through hole has an upper opening on the upper surface, a lower opening on the lower surface and a peripheral wall (46d, 53d) connecting the upper opening to the lower opening; and at least one of front and rear ends in the longitudinal direction of the upper opening is not aligned in a thickness direction with the front and rear ends in the longitudinal direction of the lower opening and the peripheral wall (46d, 53d) extends down- and inward from the front and/or rear end in the longitudinal direction of the upper opening to the front and/or rear end of the lower opening; wherein upper and lower surfaces of the absorbent member (40, 50) are covered with liquid diffusion sheets, respectively; wherein the absorbent member includes a plurality of layer elements (40, 50) stacked in the thickness direction and a liquid diffusion sheet is interposed between each pair of the adjacent layer elements (40, 50); wherein the absorbent member (40, 50) is formed with compressed grooves extending in the longitudinal direction outboard of the through hole as viewed in the transverse direction. characterized in that: between the lower surface of the absorbent member and the backsheet, there are provided two or more bonding means spaced apart from each other in the transverse direction and extending in a longitudinal direction. a topsheet lying on a side facing the wearer's body; a backsheet lying on a side opposite to the side facing the wearer's body; and an absorbent member (40, 50) interposedbetweenthetopsheet and the backsheet; wherein the absorbent member (40, 50) is formed with a through hole extending through the absorbent member (40, 50) from an upper surface thereof lying on the side of the topsheet to a lower surface thereof lying on the side of the backsheet, wherein: the through hole has an upper opening on the upper surface, a lower opening on the lower surface and a peripheral wall (46d, 53d) connecting the upper opening to the lower opening; and at least one of front and rear ends in the longitudinal direction of the upper opening is not aligned in a thickness direction with the front and rear ends in the longitudinal direction of the lower opening and the peripheral wall (46d, 53d) extends down- and inward from the front and/or rear end in the longitudinal direction of the upper opening to the front and/or rear end of the lower opening; wherein upper and lower surfaces of the absorbent member (40, 50) are covered with liquid diffusion sheets, respectively; wherein the absorbent member includes a plurality of layer elements (40, 50) stacked in the thickness direction and a liquid diffusion sheet is interposed between each pair of the adjacent layer elements (40, 50); wherein the absorbent member (40, 50) is formed with compressed grooves extending in the longitudinal direction outboard of the through hole as viewed in the transverse direction. characterized in that: between the lower surface of the absorbent member and the backsheet, there are provided two or more bonding means spaced apart from each other in the transverse direction and extending in a longitudinal direction. the through hole has an upper opening on the upper surface, a lower opening on the lower surface and a peripheral wall (46d, 53d) connecting the upper opening to the lower opening; and at least one of front and rear ends in the longitudinal direction of the upper opening is not aligned in a thickness direction with the front and rear ends in the longitudinal direction of the lower opening and the peripheral wall (46d, 53d) extends down- and inward from the front and/or rear end in the longitudinal direction of the upper opening to the front and/or rear end of the lower opening; wherein upper and lower surfaces of the absorbent member (40, 50) are covered with liquid diffusion sheets, respectively; wherein the absorbent member includes a plurality of layer elements (40, 50) stacked in the thickness direction and a liquid diffusion sheet is interposed between each pair of the adjacent layer elements (40, 50); wherein the absorbent member (40, 50) is formed with compressed grooves extending in the longitudinal direction outboard of the through hole as viewed in the transverse direction. characterized in that: between the lower surface of the absorbent member and the backsheet, there are provided two or more bonding means spaced apart from each other in the transverse direction and extending in a longitudinal direction.