A cat toilet is provided and can classify waste into feces and urine. The cat toilet includes a supporting part, a feces storage container, and an inclined classifying part. The supporting part has a supporting surface and a drop hole formed in the supporting surface. The feces storage container is disposed under the supporting surface and has a first entry. The inclined classifying part has a slope surface and a through hole formed in the slope surface. The drop hole exposes the slope surface. The slope surface can guide feces to the first entry, so that the feces move along the slope surface to the feces storage container. The feces storage container is disposed under the slope surface and used for storing the urine from the through hole.一種貓便溺裝置，其能將排泄物分類成糞便與尿液。貓便溺裝置包括支撐部、糞便存放部、斜向分類件以及尿液存放部。支撐部具有支撐面以及形成於支撐面的排便口。糞便存放部配置於支撐面下方，並具有第一入口。斜向分類件具有斜面以及形成於斜面的通孔。排便口暴露斜面，而斜面用於導引糞便，以使糞便沿著斜面移動至第一入口，並從第一入口進入糞便存放部。尿液存放部配置於斜面的下方，並用於容置從通孔流出的尿液。
