[Abstract]:Digitalization is the only way for the development of film production and diffusion. Digital film is not a homogenous block but consisted of different layers. The present dissertation identifies four categories in terms of transmitter, content, media and communication relations: a, traditional movies with digital effects for theaters; digital movies (including 3D cartoons) for digital theaters; digital movies for TV; and finally amateur productions in DV format. Based on this classification, we examine the state and the development of digital film in China.