By moving the feces or urine excreted into the pet toilet to the packing device, the source of the bad smell is sealed by the packing device, and the pet toilet is always kept clean, preventing the bad smell from spreading into the house, and eliminating the troubles of the breeder. Equipped with: a collection material for collecting excrement, a storage container for placing the collection material, a mechanism for moving the collection material collected together with the excrement from the container to the packaging part, and a mechanism for moving the excrement moved together with the moving mechanism The packaging mechanism that packs the collected materials with sheet materials can reduce the care of excrement when raising pets by packaging the excrement, and the bad smell can be completely eliminated through the packaging, and the toilet for pets can always be kept clean.