The invention discloses a release layer used for artificial leather, which comprises the following raw material components of polyolefin, vinyl silicone oil and initiating agent. The invention also discloses release paper used for the artificial leather, which comprises body paper and the release layer adhered on one side of the surface of the body paper, wherein the thickness of the release layer is 30-150mu m. The release paper used for the artificial leather, which is disclosed by the invention, is unlikely to curl in the humid environment, the artificial leather prepared from the release paper is easy to strip from the release paper, and the surface of the manufactured artificial leather has excellent smooth feeling and oil wax feeling.