PROBLEM TO BE SOLVED: To provide a disposable diaper that can be easily pulled up to a wearers crotches, allows adjustments of a fit to the wearer, can keep a connection means secure, and is easy to wear.SOLUTION: First and second engagement sections 40, 41 are provided on both sides of the outer and inner surfaces of the front body of an outer sheet 20. Third and fourth engagement sections 42, 43 which do not overlap each other when support members 45 provided on both sides of the inner surface of a rear body are provided on the inner surfaces of the support members 45. When the outer sheet 20 is connected, the first engagement section 40 and the fourth engagement section 43 engage each other and the second engagement section 41 and the third engagement section 42 engage each other.COPYRIGHT: (C)2012,JPO&INPIT【課題】着用者の股間部に容易に引上げられ、着用者へのフィット性の調整が行え、連結手段が確実に維持され、容易に装着できる使い捨ておむつを提供する。【解決手段】外装シート20の前身頃の外内面の両側部に第1,2係合部40,41を設け、後身頃の内面の両側部に設けられた支持部材45の内面に、支持部材45を重ね合わせた場合に、相互に重なり合わない第3,4係合部42,43を設け、外装シート20の連結時に、第1係合部40と第4係合部43とが係合し、第2係合部41と第3係合部42とが係合する構成によって解決する。【選択図】図1