PROBLEM TO BE SOLVED: To provide a disposable clothing article whose peel strength in lower end parts of bonding lines can be increased.SOLUTION: In a disposable diaper (10) provided with a diaper body (16) and a pair of waist belts (17) for joining front and rear waist areas (11), (12), the pair of waist belts are bonded to the diaper body via bonding lines (18) that are inwardly inclined from leg openings (15) side to a waist opening (14) side from outside in a horizontal direction (X) in the front and rear waist areas. The bonding lines have horizontal joint sections (82) extending in a horizontal bonding direction in lower end parts (62) positioned on the side of the leg openings.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT