PROBLEM TO BE SOLVED: To provide a sewage absorbing sheet for a plug-in toilet, which enables quick and accurate attachment / detachment and hygienic treatment of excrement. SOLUTION: A filth absorbing sheet is a quadrangular absorption sheet including a main body portion in which an absorber is sandwiched between a back surface sheet and a front surface sheet, and a peripheral portion not sandwiching an absorber arranged around the main body portion. The peripheral edge portion of the absorbent sheet is composed of a sheet, and includes a first peripheral edge portion extending in the width direction and a second peripheral edge portion and a third peripheral edge portion extending in the vertical direction from the first peripheral edge portion. Folded inward from both sides provided with a portion and a third peripheral edge portion, both corner portions of the first peripheral edge portion are fixed in a state of overlapping with the first peripheral edge portion itself to form a locking portion, and first on both sides of the locking portion. Each opening surrounded by the peripheral edge is formed, and the sewage absorbing sheet is attached to the insertion toilet with the insertion end touching the locking portion, and the end of the first peripheral portion is passed through the opening. The filth absorbing sheet is turned inside out, and the filth absorbing sheet is removed from the toilet bowl. [Selection diagram] Fig. 1【課題】迅速で正確な着脱を可能にすると共に、衛生的な排泄物の処理を可能にした、差込み便器用の汚物吸収シートを提供する。【解決手段】汚物吸収シートは、裏面シートと表面シートとの間に吸収体が挟まれた本体部と、本体部の周囲に配置された吸収体を挟まない周縁部とを備えた四角形の吸収シートからなり、吸収シートの周縁部は、幅方向に延びる第１周縁部と、第１周縁部から垂直方向に延びる第２周縁部および第３周縁部とを含み、吸収シートを、第２周縁部および第３周縁部を備えた両側から内側に折り返し、第１周縁部の両隅部が第１周縁部自身と重なった状態で固定されて係止部となり、係止部の両側に第１周縁部で囲まれた開口部がそれぞれ形成され、挿入端部が係止部に当たった状態で差込み便器に汚物吸収シートが取り付けられ、開口部の中に第１周辺部の端部を通すことにより、汚物吸収シートが裏返され、汚物吸収シートが差込み便器から取り外される。【選択図】図１
