A diaper 1 has an absorptive main body (2) and a belt section (31). The diaper 1 has formed therein a pair of leg openings (4) and has provided thereon a pair of joining sections (51, 52) for joining at least the absorptive main body (2) and the belt section (31) together, the pair of joining sections (51, 52) being tilted outward in the horizontal direction from the vertical top side toward the pair of leg openings (4). The absorptive main body (2) has an absorption body (21), a skin-side sheet (22), an exterior sheet (23), and a non-skin-side sheet (24). Separate sheet members (61, 62) are provided between the pair of joining sections (51, 52) in the horizontal direction, and the separate sheet members (61, 62) have portions which overlap regions of the absorptive main body (2), the regions being those where the absorption body (21) is not provided.一種紙尿布(1),具有吸收性本體(2)及帶部(31),並形成有一對腳圍開口部(4),且設有一對接合部(51、52),該一對接合部是從縱方向的上方側朝一對腳圍開口部(4)向橫方向外側傾斜並至少將吸收性本體(2)及帶部(31)接合,吸收性本體(2)係具有吸收體(21)、肌膚側薄片(22)、外裝薄片(23)及非肌膚側薄片(24),在一對接合部(51、52)的橫方向之間設有不同體薄片構件(61、62),不同體薄片構件(61、62)係具有與吸收性本體(2)中未設有吸收體(21)的區域重疊之部分。1‧‧‧紙尿布(吸收性物品)2‧‧‧吸收性本體4‧‧‧腳圍開口部21‧‧‧吸收層31‧‧‧帶部31a‧‧‧橡膠線32‧‧‧腳皺褶部32a‧‧‧橡膠線40‧‧‧周緣51‧‧‧第1接合部52‧‧‧第2接合部61‧‧‧第1不同體薄片構件HB‧‧‧腰圍開口部
