To provide a registration system for pet to give the sense of satisfaction to a keeper by removing perfunctory obstacle of distinguishing the keeper and pet as human and nonhuman.

A resident register 1 for pet is formed, and at least the name and address of a pet is registered on the resident register. An indication 4 which shows that it corresponds to a resident card, and a registration book listing the whole or a part of the registered matters are issued as the evidence of the registration.