The invention provides a silicone rubber composite film, and a preparation method and usage thereof. The preparation method of the silicone rubber composite film comprises the following steps: dissolving amino silicon oil and polydiorgnosiloxane containing vinyl into an organic solvent to made a film casting liquid, wherein the mass of the amino silicon oil and the polydiorgnosiloxane containing vinyl accounts for 2 to 15 percent of the total mass, and the mass ratio of the polydiorgnosiloxane containing vinyl to the amino silicon oil is 1/3 to 3; coating a layer of the film casting liquid on the surface of a bottom film, airing for 10 to 60 minutes in the air, and then heating for 1 to 10 hours at 50 to 100 DEG C. The preparation method of the silicone rubber composite film, provided by the invention, is simple and scientific, and compared with the prior art, the silicone rubber composite film provided by the invention has the advantages that noble metal catalysts with high prices are not required, and the film making cost is effectively lowered.