The advent of the omnime-dia era has brought new opportunities and challenges to the dissemination of ar-chival culture.Following the logic of"power-evolution-feedback",this paper analyzes the mechanism of archival cul-ture comunication,analyzes the power source of archival culture transmission from three aspects:the attributes of ar-chives themselves,the needs of the pub-lic and digital media technology,and dis-cusses the evolutionary mechanism of ar-chival culture transmission based on the evolution of cultural production mode.From"content-centered mass communi-cation"to"user-centered mass commu-nication"to"data-centered multi-level communication",it emphasizes the key role of feedback mechanism in archival culture communication.The first feed-back led by archival department,the sec-ond feedback with user experience par-ticipation and the instant feedback sup-ported by technology platform help to op-timize and improve the communication effect.The purpose is to provide useful reference for relevant theoretical re-search and practical exploration.