Abstract: Film has the function of “the wonder natural instinct”,except for record.Film aesthetics is made up of the realism and the technological doctrine .Digital technology inherits the technological doctrine tradition in earlier stage directly.It is possible for artists to express their imagination and feelings.Digital technology has changed the way of the production of the film.But we can' t think digital technology has subverted the essence of the filml.They are not a kind of substituting relation but a kind of coexisting and complemental relation between the realism and the technological doctrine.

Key words: Ontology of the film, the film Aesthstic tradition, Digital technology, Truth