PROBLEM TO BE SOLVED: To provide a tape type disposable diaper wherein it is difficult for a pinching part of a fastening tape to be folded and to adhere to a locking part and wherein the pinching part is easy to be pinched in use.SOLUTION: In a tape type disposable diaper, a fastening tape 13 has a fold 13G along the base end side of all or a tip side portion in a pinching part 13D, and the tip side rather than the fold 13G rises to a side opposite to a face having the locking part 13A.