Following the theoretical standpoint of media existentialism, this paper presents a systematic description of the generating mechanism for the interaction of intelligent media and man. Through the deconstruction of the communicative theory’s media presupposition of the channel of information, this article reveals how the generative artificial intelligence emerges as a technological substrate with the functions of creating for man’s mode of thinking and being.Intelligent media’s mechanisms reframe perception, processes reframe identities, and emergence produces new types of social affiliations, collectively functioning as a kind of network that possesses generative dynamics.The research shows there exists deep dialectics of human being and intelligent technology: the optimizations of efficiency bring perceptions of narrowing down, mobility of identity arouses subjectivity anxiety, and intelligence of system breeds the dilemma of accountability attribution. Thus, the duality asks the communication study to get out of the bounds of instrumental rationality and step back to philosophy question of essence of technology.In theory, the present research makes an ontological redefinition in the field of communication, achieves a new conceptual system to interpret the co-evolutionary relationship between the media technology and human society, and achieves new foundational value for ethics building under the digital age.Future research should concern not only the technological breakthrough of artificial intelligence that can be interpretable, not only institutional innovation of human computer interaction, but try to seek out how can we balance humanistic values with technological evolution dialogue.