An absorbent core (22) of an absorbent article (10) consists of a block region (235) and a non-block region (236) on the periphery thereof. The block region (235) has a block structure comprising a plurality of high basis weight sections (234a) having a relatively high weight basis, and low weight basis sections (234b) having a relatively low weight basis. The non-block region (236) is positioned on both sides and at the end of a ventral section (A) side in the longitudinal direction of the block region (235), and is not positioned at the end of a dorsal section (B) side.吸收性物品(10)之吸收性芯體(22)具有塊狀區域(235)及位於其外周之非塊狀區域(236)。塊狀區域(235)具有包含基重相對較高之複數個高基重部(234a)及基重相對較低之低基重部(234b)的塊狀構造。非塊狀區域(236)係位於塊狀區域(235)之沿長度方向之兩側部及腹側部(A)側之端部,並且不位於背側部(B)側之端部。10‧‧‧尿布21‧‧‧正面片材22‧‧‧吸收性芯體24‧‧‧側翼161‧‧‧立體褶皺彈性構件162‧‧‧立體褶皺形成用片材162A‧‧‧端部區域接合部162B‧‧‧端部區域接合部163‧‧‧側翼彈性構件164‧‧‧彈性片材165a‧‧‧腹周彈性構件165b‧‧‧腰部彈性構件234a‧‧‧高基重部234b‧‧‧低基重部235‧‧‧塊狀區域236‧‧‧非塊狀區域237A‧‧‧腹側部高基重部群237B‧‧‧背側部高基重部群237C‧‧‧下襠部高基重部群A‧‧‧腹側部B‧‧‧背側部C‧‧‧下襠部CL‧‧‧長度方向中心線F‧‧‧黏扣帶W‧‧‧腰部開口緣X‧‧‧寬度方向X-X‧‧‧剖面線Y‧‧‧長度方向
