A disposable pull-up diaper (1) is provided with: a pair of band-shaped protrusions (13) protruding sideways from connecting lines along which a front section and a rear section, which are located on the belly side and back side of the wearer, are connected together first waist elastic members (443) joined to first waist regions (407) which are the upper parts of waist regions (406) extending along a waist opening and second waist elastic members (444) joined to second waist regions (408) which are the lower parts of the waist regions (406). In a state in which an outer cover sheet (4) is stretched in the left-right direction, a first unit contraction force in the first waist regions (407), the first unit contraction force being a contraction force in the left-right direction per unit width of the first waist regions (407) in the vertical direction, is less than a second unit contraction force in the second waist regions (408). The configuration can prevent the upper ends of the pair of band-shaped protrusions (13) from biting into the skin of the wearer and can prevent the disposable diaper (1) from being displaced in the vertical direction while the disposable diaper (1) is worn.