Disposable underpants type diapers in which a pocket for containing excrementis aligned easily with an external genitalia and an anus are produced continuously.A first web (201) where diaper basic bodies are continuous in their width direction,and a second web (202) where sheet-like members being fixed to the inner surfaceside of an inseam area in order to form pockets are continuous in their width directionare supplied in the machine direction MD and superimposed, and then are bondedtogether at the opposite side edge portions of the inseam area, thus obtaininga first compound web (301). Intermediate part in the cross direction CD isclippedsubstantially circularly from between the diaper basic bodies of the first compoundweb, thus obtaining a second compound web. The second webs (202) overlappingwhen the second compound web is folded are bonded locally by adhesive (132) atthe central part of the diaper basic body in the machine direction MD, thus obtaininga third compound web. After an bonding area is formed along a cut line extendingin the cross direction CD, the third compound web is cut at the cut line to obtainindividual underpants type diapers.
