Abstract: The cultivation and practice of core value is reflected in all aspects of life,and most importantly in the behavior of ordinary people.Etiquette,as a customized code of conduct and norm in people's long-term life practice,contains politeness and etiquette.It is an important "medium" for interpersonal interaction and emotional establishment in modern society.Everyone in socialist countries should consciously eliminate behavior paradigms that do not conform to core values,embody honesty and friendliness in personal interaction and equality and freedom in social interaction,so as to finally form a harmonious coexistence of civilization at the national level.Therefore,on the basis of inheriting excellent traditions and absorbing the achievements of modern civilization,the construction of modern etiquette should form three levels of etiquette content: personal etiquette,social etiquette culture and national etiquette,and establish corresponding social mechanism to design,produce and promote modern etiquette system.

Key words: core value, etiquette, etiquette culture, national etiquette, interaction