In [problem] if the bottom of the pet cage was formed lower in the center with a waste water outlet, pet breeding in order toward the waste water outlet while cleaning water to flow evenly on the surface, wash the rest of the shit, etc. does not occur to provide a washing apparatus of feces or the like in the basket. To A foundation of the cage bottom with a space for pets move around, and fitting the wide bottom saucer pet droppings and the like fall, the bottom tray is formed in a conical shape which is inclined low in the center of the circular with is, to each other and the wastewater opening provided in the lowest center, the ejection port of the washing water provided in at least one place of the high altitude around the bottom tray, the spout is, in the circumferential direction of the bottom tray and concentric circles water is configured to be ejected.FIELD 1【課題】ペットかごの底部を廃水口のある中央に低く形成した場合において、その表面に洗浄水が均等に流れながら廃水口に向かうために、糞等の洗い残りが生じなくなるペット飼育かごにおける糞等の水洗装置を提供する。【解決手段】ペットが動き回る空間を有するかご下部の基盤に、ペットの糞等が落ちる広い底受皿を嵌着し、該底受皿は、円形の中央に低く傾斜するすり鉢状に形成されるとともに、最も低い中央に廃水口を設けてあって、底受皿の周囲の高所の少なくとも一か所に洗浄水の噴出口を設け、その噴出口は、底受皿と同心円の周方向に水が噴出されるように設定されている。【選択図】 図1