An absorbent (4) is configured of an absorbent core (40) containing an absorbent material. The absorbent core (40) has high-weight parts (41) containing a relatively large amount of the absorbent material and low-weight parts (42) containing a relatively small amount of the absorbent material and the high-weight parts (41) and the low-weight parts (42) are alternately formed both in the lengthwise direction (X) and in the widthwise direction (Y) of the absorbent article (1). In the absorbent article (1), a groove (7) is formed by concaving a front face sheet (2) together with the absorbent core (40). The groove (7) is at least formed of a row of two high-weight parts (41) and (41) and one low-weight part (42), said low-weight part (42) being positioned between said two high-weight parts (41) and (41), that are aligned in the lengthwise direction (X) or in the widthwise direction (Y). A bottom wall part (71) constituting the groove (7) is positioned closer to the non-skin-contact face (4b) side than the thickness direction center (Tc) of the absorbent core (40).本發明之吸收性物品之吸收體(4)係包括包含吸收性材料之吸收性芯體(40)而構成，吸收性芯體(40)包含吸收性材料相對較多之高基重部(41)、及吸收性材料相對較少之低基重部(42)，高基重部(41)與低基重部(42)分別於吸收性物品(1)之長度方向(X)及寬度方向(Y)上交替地形成。於吸收性物品(1)中形成有正面片材(2)及吸收性芯體(40)一體地凹陷而成之槽(7)。槽(7)係至少與在長度方向(X)或寬度方向(Y)上排列之2個高基重部(41)、(41)及由2個該高基重部(41)、(41)所夾持之1個低基重部(42)相連而形成。劃分槽(7)之底壁部(71)係位於較吸收性芯體(40)之厚度方向中央(Tc)更靠非肌膚抵接面(4b)側。
