A conveying step of conveying in a direction orthogonal to the waist direction Y, the continuum of the composite web, during the transfer step, the non-skin surface 3b of the waist portion 3 is not in one of the second side flap or the first so as to overlap the skin surface 3b, and the folding process first folding the waist section 3, during the transfer step, after the step, the back part and the front part is the skin surface 3a of the second side flap and the first folding first and folding step second folding the second side flap and the first so as to overlap with the skin surface 3a of, after the step, the step, the skin surface of the waist section 3 disassociate cut loose to wear individual articles a continuum second folding so as to overlap with the second fastener member 32 of the first fastener member 31 provided in 3a is provided over the non-skin surface 3b of the other of the second side flap or the first step the third folding folding the wearing article individual I equipped with a door.複合ウエブの連続体を、胴回り方向Yに直交する方向に搬送する搬送工程と、搬送工程の実行中に、胴回り部3の非肌面3bが第1または第2サイドフラップのうちの一方の非肌面3bに重なるように、胴回り部3を折り畳む第1折り工程と、搬送工程の実行中に、第1折り工程の後に、第1および第2サイドフラップの肌面3aがバック部およびフロント部の肌面3aに重なるように第1および第2サイドフラップを折り畳む第2折り工程と、第2折り工程の後に、連続体を個々の着用物品に切り放す切り放し工程と、胴回り部3の肌面3a上に設けられた第1ファスナ部材31が第1または第2サイドフラップの他方の非肌面3bに設けられた第2ファスナ部材32に重なるように、個々の着用物品を折り畳む第3折り工程とを備える。