PROBLEM TO BE SOLVED: To provide an absorbent article in which a product having an optimal absorption performance can continuously be obtained by providing an overlapping part between an opening of a liquid-permeable surface sheet and an embossment of the absorber at a predetermined ratio.SOLUTION: A sanitary napkin 1 is interposed with an absorber 4 with many embossment 11 imparted by pressing from a skin side between a liquid-permeable surface sheet 3 with many openings 10 formed therein and a liquid impermeable back sheet 2, and is disposed of the openings 10 and the embossment 11 so as to be overlapped at a predetermined ratio in the thickness direction. A pitch ratio Pobtained from (pitch Pof the opening 10)/(pitch Pof the embossment 11) is 0.7-0.9. An overlapping rate M obtained from (total area of an overlapping part 12 with the opening 10 and the embossment 11 overlapped in the thickness direction)/(total area of the opening 10)×100 in the inside of a circle of 50 mm in diameter centering on a blood outlet H of a wearer is 17% to 73%.SELECTED DRAWING: Figure 3【課題】透液性表面シートの開孔と吸収体のエンボスとの重なり部を所定の割合で設けることにより、最適な吸収性能を持つ製品が連続して得られるようにする。【解決手段】多数の開孔１０が形成された透液性表面シート３と不透液性裏面シート２との間に、肌側からの圧搾により多数のエンボス１１が付与された吸収体４が介在されるとともに、前記開孔１０とエンボス１１とが厚み方向に所定の割合で重なるように配置された生理用ナプキン１である。（前記開孔１０のピッチＰ１０）／（前記エンボス１１のピッチＰ１１）から得られるピッチ比ＰＲが０．７～０．９であり、着用者の排血口部Ｈを中心とした直径５０ｍｍの円内において、（前記開孔１０とエンボス１１とが厚み方向に重なる重なり部１２の総面積）／（前記開孔１０の総面積）×１００から得られる重なり率Ｍが１７％～７３％とする。【選択図】図３
