PROBLEM TO BE SOLVED: To provide an excrement disposal bag and a portable toilet set, the excrement disposal bag that is thin even if folded, has a bottom exhibiting a round when in use, also has a strength, and is convenient in carrying and handling thereof.SOLUTION: An excrement disposal bag is a bag comprising a film of about 10 μm in thickness of a linear low density polyethylene. The bag is configured such that an elongated upper surface part and a lower surface part are provided in a cylindrical longitudinal direction, the other portion is made into two or more pleat shapes, folded and laminated between the upper surface part and the lower surface part, a heating adhesive part is made by the heating adhesion in the right angle direction every longitudinal predetermined length of the laminated film, the upper side in the longitudinal direction therefrom is made into a bag bottom, the perforation for cutting is provided in a place positioned in the bag bottom lower side, and a bag bottom presents roundness by being separated from the perforation when in use. Also, a portable toilet set is provided by combining the excrement disposal bag, a coagulating agent and a water-soluble bag with deodorant therein.SELECTED DRAWING: Figure 7COPYRIGHT: (C)2016,JPO&INPIT【課題】 排泄物処理袋において畳んでも薄く、使用の際に底部が丸味を呈し、強度もあり携帯や扱いが便利な排泄物処理袋、及び、携帯トイレセットを提供する。【解決手段】 直鎖状低密度ポリエチレンの厚さが10μm程度のフィルムからなる袋であって、袋は円筒状の長手方向に細長い上面部と下面部を設けて、その他の部分を上面部と下面部との間に複数の襞状にして畳んで積層して、該積層した積層フィルムの長手方向の所定長毎に直角方向に加熱接着して加熱接着部として、それより長手方向の上側を袋底部とし、該袋底部の下側に位置する箇所に切断用のミシン目を設け、使用に際してミシン目から切り離して袋底部が丸みを呈する排泄物処理袋、及び、その排泄物処理袋と凝固剤と消臭剤を入れた水溶性の袋とを組み合わせた携帯トイレセット。【選択図】図7