In addition to the function of communication, the Information and Communication Technologies (ICT) have a function of transmission. Due to the developing of new communication technologies, the historical writing shifts from elite history to public history. Based on how the visual media enriching the historical writing, the paper discusses the China historical independent documentaries of 21st century by combining the basic theory of Debray's Mediologies and the theory of Public History. It points out that both the directors and subjects of this kind of documentary are nameless, the basic film aesthetics is visual oral history and the era in films are mainly focused on 1949-1978, which reflects a common fact that the directors have a strong impulse to establish alternative visual archives. This is an effort to reestablish the historical sense and its subjectivity in contemporary China.