To provide a fluororesin film for masking causing no peeling between a release paper and a release agent layer by using an anchor coating agent exhibiting excellent adhesion to a silicone-based release agent and a release paper composed of Japanese paper or a polyester film used for a fluororesin film for masking.

The fluororesin film 6 for masking comprises a release paper composed of Japanese paper or a polyester film 1, a silicone-based anchor coating layer 2, a release agent layer 3 and a self-adhesive layer 4 successively formed on the release paper 1, and a film 5 for masking laminated on the self-adhesive layer 4. The manufacturing method of the fluororesin film 6 for masking comprises a step for forming a silicone-based anchor coating layer 2 on a release paper composed of Japanese paper or a polyester film 1, a step for forming a silicone-based release agent layer 3 on the anchor coating layer 2, a step for forming a silicone-based self-adhesive layer 4 on the release agent layer 3 and a step for laminating a film 5 for masking on the self-adhesive layer 4.