The utility model provides an absorbent article. A longitudinal groove (51) extending along the longitudinal direction of a rear part (C) and an inner square groove (61) which is nearer to the inner side in the transverse direction (Y) of the rear part (C) than the longitudinal groove (51) are formed in the skin opposite face of an absorbent main body (5) the longitudinal groove (51) is interrupted in the longitudinal direction (X) interruption parts (52A,52B) exist in a specified area (CS) of the rear part clamped by two imaginary lines (L1,L2) the imaginary lines (L1,L2) respectively extend in the transverse direction (Y) through longitudinal front and rear ends (9a,9b) of a rear adhesive part (9) formed on the non-skin opposite face of a corresponding rear wing part (8), and moreover, the inner square groove (61) exists in the specified area (CS) of the rear part.