Method for making diaper

A method of manufacturing diapers which do not cause contamination of the wearer's skin due to bodily wastes and prevents mixing between liquid and solid bodily wastes. In the method, diapers (1) are manufactured using a continuously supplied base sheet (2) having a fixed width. The method has a step of forming a waste opening (7) at a position separated from an imaginary center line (M) bisecting the width dimension of the base sheet, a step of covering the waste opening by an absorption panel (3) and joining the absorption panel to the base sheet along the outer periphery (6) of an absorption core (4), the absorption panel (3) being formed by joining the absorption core (4) to the center of a sheet piece (5) having a larger area than the absorption core (4), a step of applying a hot melt adhesive (HM) to that portion of the absorption panel(3) which is located between the imaginary center line and the waste opening and on the opposite side of that surface of the absorption panel(3) which is joined to the base sheet, a step of doubling over the base sheet with the hot melt adhesive-applied surface facing inside, and bonding the superposed areas together, and a step of cutting the base sheet at predetermined intervals to obtain individual diapers.