PROBLEM TO BE SOLVED: To prevent the peeling of a fastening tape fastened on a downside when a fastening tape fastened on an upside is peeled at the time of overlap-fastening.SOLUTION: Since the area of a second fastening part 412 is smaller than the areas of first and third fastening parts 411 and 413 in the connection part 4 of the disposable diaper, the fastening force of the second fastening part 412 to a part 26 to be fastened is smaller than that of the first and third fastening parts 411 and 413. Therefore, the fastening force of the second fastening part 412 of a second fastening tape 41b to the outer surface of a first fastening tape 41a is smaller than the fastening force to the part 26 to be fastened of the respective fastening parts of the first fastening tape 41a. Therefore, when the second fastening tape 41b fastened on the upside of the first fastening tape 41a and second fastening tape 41b fastened in a superposed state is peeled from the part 26 to be fastened, the peeling of the first fastening tape 41a fastened on the downside from the part 26 to be fastened can be prevented.
