A toilet for separating excreta of a cat into feces and urine includes a supporting part, a feces storage container, an inclined classifying part, and a urine storage container. The supporting part has a supporting surface and an egestion opening formed on the supporting surface. The feces storage container is disposed below the supporting surface, and has a first entrance. The inclined classifying part has a sloped surface and through holes formed on the sloped surface. The egestion opening allows the sloped surface to be exposed for guiding the feces, so as to move the feces along the sloped surface to the first entrance, and allow the feces to enter the feces storage container from the first entrance. The urine storage container is disposed below the sloped surface for receiving urine flowed from the through holes.