[Problem to be solved] To provide a pet toilet sheet cover member that is provided so as to cover a pet toilet sheet laid on a floor surface and can be easily positioned with respect to the pet toilet sheet and can be easily moved, and to provide a pet toilet having the pet toilet sheet cover member.
[Solution] A cover member 1 of a pet toilet sheet 3 according to the present invention includes: a frame member 7 that is provided on the rectangular pet toilet sheet 3 laid on a floor surface so as to over an outer peripheral edge part of the pet toilet sheet 3; and sheet fixing members 9 that are provided on the frame member 7 and fix the pet toilet sheet 3 to the frame member 7. The frame member 7 is formed to have an octagonal outer peripheral shape by obliquely cutting off corner parts of a rectangular shape. The sheet fixing members 9 are respectively provided at the corner parts of the frame member 7, and are structured to respectively fix folded corner parts of the pet toilet sheet 3 to the frame member 7.