An animal system toilet that allows for easy cleaning while almost completely eliminating wet feet due to urine during excretion and contamination of a room due to the wet feet, and a disposable liquid permeable panel for an animal system toilet is provided that allows for easy cleaning of the animal system toilet and that can remarkably prevent wet feet during excretion using the animal system toilet and contamination of a room caused by the wet feet. An animal system toilet is used that includes: an excrement storage unit a liquid permeable panel that is disposed above the excrement storage unit and passes liquid through and a supporting unit that supports the liquid permeable panel while forming a space between the excrement storage unit and the liquid permeable panel, in which the liquid permeable panel has water absorbency and is configured to be detachable with respect to the supporting portion.
