A method for manufacturing a disposable diaper 1, comprising: an outer sheet 11 facing outward a liquid-permeable inner sheet 14 facing a liquid receiving side and an absorbent layer 13 interposed between the outer sheet and the inner sheet, to form a front face portion 2A to be applied to the abdomen of a wearer, an intermediate portion 2B to be applied to the crotch, and a back face portion 2C to be applied to the back side, the method comprising: (a) the step of applying an adhesive to an inner face of the band-shaped outer sheet which can be seen through (b) the step of cutting a pattern sheet having a pattern on a surface and a smaller area than an outer sheet and adhering the pattern sheet to a predetermined position on the inner face of the outer sheet with the surface of the pattern sheet toward the outer sheet by positioning the pattern sheet at a predetermined interval in a longitudinal direction (c) the step of placing an absorbent layer on the inner side of the outer sheet and adhering the absorbent layer to the outer sheet with the adhesive (d) the step of adhering an inner sheet on the inner side of the absorbent layer with the adhesive to obtain a laminate and (e) the step of dividing the laminate into individual laminates of each diaper, so that the pattern of the pattern sheet, as viewed from the back face or the front face of the diaper, can be seen through the outer sheet.
