PROBLEM TO BE SOLVED: To provide a waist band capable of easily replacing an absorbent body from the back side of a wearer.SOLUTION: The waist band includes the hook material 56 and locking part provided to both end parts of a strip-like body 50, the first and second abdominal locking parts 70 and 72 locked with the abdominal side of the absorbent body and the first and second back locking parts 71 and 73 locked with the back surface of the absorbent body. The hook materials 84 capable of being locked with the outer surface of the absorbent body are provided to the inner surfaces of the first and second abdominal locking parts 70 and 72 and the first and second back locking parts 71 and 73 while the first and second abdominal locking parts 70 and 72 and the first and second back locking parts 71 and 73 are provided so as to be inclined with respect to the longitudinal direction of the strip-like body 50 to extend so as to exceed the waist lower opening edge of the strip-like body 50.