PROBLEM TO BE SOLVED: To provide a disposable diaper which can prevent an absorbent polymer from falling from an end part while the end part of an absorbent body does not make direct contact with a wearer and improves a wearing feeling.SOLUTION: A disposable diaper 1 disclosed in the invention includes an absorbent body 3 which includes an absorber 33 and is sectioned into an abdominal side region A, a back side region B, and a crotch region C and an exterior body 2 fixed on a non-skin-facing surface side of the absorbent body 3. Both end parts 3a, 3b of the absorbent body 3 in a Y direction are covered with a belt-like sheet 4 that is a separate body from the exterior body 2 and extends in an X direction, and are fixed between the exterior body 2 and the belt-like sheet 4 through an adhesive 5. The applied amount of an adhesive 5b in the back side region B is less compared to the application amount of an adhesive 5a in the abdominal region A.
