The public ethic of the residential life,namely it is a valuable view and basic norms of conducts,which people re-flect in the public fields of daily lives,and should follow In the Record of Rites,does the public not contains the meanings of the monarch and his community in the early and middle periods of pre-Qin,also the ethical expression of “justice”in the late. There are the two spaces of the public field of resident,the family interior public one and external one around the house. Through ethical division of living space,public manners and language taboo way,does the rite mold a moral sense,that people make a judgment of right or wrong about the public behaviors,and gain life stability and social order.