Conveying circle with the rotation of the main rotary shaft 91 while holding the main holding surface 11s to receive body 2 body 2 at least in the main holding surface 11s which is provided along the transport circle C whose center is the main rotary shaft 91 sub-holding surface 12s of the 11 main pads which moves along and C, are a pair arranged for 11 each main pad adjacent the transport circle C on the main pad 11, provided along the transport circle C and the side pad 12 to hold the end of the 3 flap to receive sub holding surface on 12s the end of the waist direction, sub-holding surface 12s of the side pads 12 pair of main holding surface 11s of the main pad 11 at least three flap Rotate for 11 main pad the side pads 12 a pair so as to face with, and system folding flap of disposable wearing article with, and folding mechanism 40 fold the flap 3.主回転軸91を中心とする搬送円Cに沿って設けられた主保持面11sで少なくとも本体2を受け取り本体2を主保持面上11sに保持しながら主回転軸91の回転に伴って搬送円Cに沿って移動する複数の主パッド11と、各主パッド11の搬送円C上に隣接して各主パッド11に対し一対配置され、搬送円Cに沿って設けられたサブ保持面上12sにフラップ3の少なくとも胴回り方向の端部を受け取りサブ保持面上12sにフラップ3の端部を保持するサイドパッド12と、一対のサイドパッド12のサブ保持面12sが主パッド11の主保持面11sと対面するように一対のサイドパッド12を主パッド11に対し回転させて、フラップ3を折り畳む折り機構40と、を備えた使い捨て着用物品のフラップの折りシステム。
