In the world history of journalism and communication,Plato’s name has been linked with authoritarianism.Because he was the first to systematically discusses transmission control at more than two thousand years ago.People usually regard him as the initiator of modern totalitarian theory.His proposal for controlling contents and thoughts of communicative activities such as poetry,drama,music and storytelling reveals the general objective laws of media content propagation control.From the point of view of the evolution of the history of communication thoughts,ideas of propagation control were later inherited and developed into the modern totalitarian theory.There is no doubt that it has a farreaching impact.But his thoughts’ initial formation motive and background are still worth examining from another perspective.