What is claimed is: 1. A disposable wearing article (1) comprising a front part (20) for covering the front torso of a wearer, a back part (21) for covering the back waist of the wearer, and a crotch part (22) for covering the crotch of the wearer A method for manufacturing a disposable wearing article which processes while conveying an intermediate product in a state in which a front portion and a back portion are separated from each other in a conveying direction (Y) via a crotch portion, wherein a longitudinal direction is set in a conveying direction (Y) (27) of the downstream side (Y 1) of the backsheet is directed toward the downstream side and the continuous web (W 2) which becomes the liquid impermeable backsheet (27) Cutting the back sheet (27) into a nonwoven fabric web (W1 (W1)) so that the convex front end line (27F) is on the downstream side in the conveying direction (Y) ) Intermittently in the conveying direction (Y) Provided.着用者の前胴を覆うフロント部(20)と、着用者の後胴を覆うバック部(21)と、着用者の股間を覆う股部(22)とを備えた使い捨て着用物品(1)のフロント部とバック部とが搬送方向(Y)に股部を介して離間した状態で中間品を搬送しながら加工する使い捨て着用物品の製造方法であって、搬送方向(Y)に長手方向が設定された不織布ウエブ(W1)を搬送する工程と、液不透過性のバックシート(27)となる連続ウエブ(W2)をバックシートの下流側(Y1)の先端ライン(27F)が下流側に向かって凸となるように、所定の長さに次々に切断する工程と、凸の先端ライン(27F)が搬送方向(Y)の下流側となるように、バックシート(27)を不織布ウエブ(W1)の搬送方向(Y)に間欠的に配置する工程とを備える。
