PROBLEM TO BE SOLVED: To provide a tape-type disposable diaper, regardless of having a simple structure, having a storage space with high fittability, formed on the back side.SOLUTION: The tape-type disposable diaper includes an elastic stretchable sheet 90 fitted between a front layer 21 and a back layer 22 in a stretched state in the width direction so as to include at least width-directional central part of a front end of a back-side end flap part EF. At least width-direction central part of the front end of the back-side end flap part EF is so configured that the front surface of the elastic stretchable sheet 90 is fixed to the front layer 21 and the back surface thereof is not fixed to the back layer 22, and the back layer 22 is defined as a turn-up stretchable part 20 that is not elastically stretchable.SELECTED DRAWING: Figure 9
