A pet toilet (1A) of the present invention is provided with a footing-constituting member [2 (20, 21, 22)] constituting a footing for a pet conducting an excreting action and a frame (3) surrounding the footing-constituting member 2 and rectangular in a plan view. The frame (3) is configured so as to be foldable by folding one set of opposite sides (31, 31) of two sets of opposite sides constituting the frame such that central portions thereof in a lengthwise direction of the one set are directed inward of the frame. The footing-constituting member (2) is supported by supporting bodies (32) projecting from inner circumferential faces (3B) of the frame (3) inward of the frame (3) from a lower side of the footing-constituting member. The supporting bodies (32) are composed of portions of sides (30, 31) constituting the frame (3), are arranged to be approximately flush with inner circumferential faces (3B) of the frame (3) without projecting the inner circumferential faces (3B) to be put in a stored state during nonuse, and are caused to project inward of the frame (3) to be put in use state during use.
