The problem of the present invention is not to deteriorate the fitting at a portion including a crossing position between a front around-leg elastic member and a back around-leg elastic member in a state in which the front around-leg elastic member and the back around-leg elastic member cross each other and substantially extend along a leg opening. In a trunks-type disposable diaper in which a front around-leg elastic member (27) and a back around-leg elastic member (26) are attached on both sides in a width direction (WD) of an intermediate region (22) in a region between an edge (29) of one leg opening and an edge (29) of the other leg opening in a pattern in which at least one front around-leg elastic member (27) and at least one back around-leg elastic member (26) cross each other, the above-described problem is solved by providing an inner member bonded portion (18) that is a region bonding an outer member (20) and an inner member (10) only further to the center side in the width direction than a crossing position (C1) between the front around-leg elastic member (27) and the back around-leg elastic member (26) on both sides in the width direction in the intermediate region (22) .
