The present invention provides an environment-protectively disposable sanitation bag. The environment-protectively disposable sanitation bag includes a seat covering part, a bag body, and an attaching component. The seat covering part is provided with an opening. The bag body is connected with the seat covering part, and includes a containing part. The attaching component is disposed on the seat covering part. The seat covering part has a first diameter, the first containing part has a second diameter, and the first diameter is greater than the second diameter.本發明提出一種環保拋棄式衛生袋，包括：坐墊紙部、袋體、及固定元件。坐墊紙部包括開口。袋體連接於坐墊紙部，並包括容納部。固定元件設置於坐墊上。坐墊紙部具有第一直徑，容納部具有第二直徑，且第一直徑大於第二直徑。
