An underpants-type absorbent article, which is provided with an outer body, provided with a mutually separate front piece, back piece and connecting sheet, and wherein the front piece and the back piece are mutually joined at side areas and are mutually connected by the connecting sheet extending in the front-to-rear direction at the crotch area, and an inner body, containing an absorptive body and which is overlapped and anchored to the connecting sheet on the inside of the outer body, wherein at least a portion of both edges in the transverse direction of the connecting sheet are positioned farther to the inside in the transverse direction than both edges in the transverse direction of the inner body in an area between the front piece and the back piece, and non-anchored areas where the connecting sheet and the inner body are not mutually anchored are provided around both edges in the transverse direction of the connecting sheet in the area between the front piece and the back piece, wherein the connecting sheet has a shape in which narrowed portions are provided in both sides of a rectangular shape substantially in the center in the longitudinal direction, the side edges of the connecting sheet are provided with a central portion and end portions positioned on both sides in the longitudinal direction of the central portion, the central portion is curved inward, and the end portions extend substantially in the longitudinal direction and the end portions are positioned farther to the inside in the transverse direction than the lower edge of the front piece and the lower edge of the back piece, so that the end portions do not coincide with the edges of the outer body that define the leg holes, the edges that define the legs holes are formed by the side portions of the lower edge of the front piece, the side portions of the lower edge of the back piece, and both edges of the connecting sheet, the edges (1 LE) are formed by a single cutting action and are smoothly curved and continuing, wherein at least a portion of both edges in the transverse direction of the connecting sheet are positioned farther to the outside in the transverse direction than both edges in the transverse direction of the inner body in an area where the connecting sheet overlaps the front piece or back piece. an inner body, containing an absorptive body and which is overlapped and anchored to the connecting sheet on the inside of the outer body, wherein at least a portion of both edges in the transverse direction of the connecting sheet are positioned farther to the inside in the transverse direction than both edges in the transverse direction of the inner body in an area between the front piece and the back piece, and non-anchored areas where the connecting sheet and the inner body are not mutually anchored are provided around both edges in the transverse direction of the connecting sheet in the area between the front piece and the back piece, wherein the connecting sheet has a shape in which narrowed portions are provided in both sides of a rectangular shape substantially in the center in the longitudinal direction, the side edges of the connecting sheet are provided with a central portion and end portions positioned on both sides in the longitudinal direction of the central portion, the central portion is curved inward, and the end portions extend substantially in the longitudinal direction and the end portions are positioned farther to the inside in the transverse direction than the lower edge of the front piece and the lower edge of the back piece, so that the end portions do not coincide with the edges of the outer body that define the leg holes, the edges that define the legs holes are formed by the side portions of the lower edge of the front piece, the side portions of the lower edge of the back piece, and both edges of the connecting sheet, the edges (1 LE) are formed by a single cutting action and are smoothly curved and continuing, wherein at least a portion of both edges in the transverse direction of the connecting sheet are positioned farther to the outside in the transverse direction than both edges in the transverse direction of the inner body in an area where the connecting sheet overlaps the front piece or back piece.