The invention relates to a preparation method of a magnetic guidance super-hydrophobic acrylate rubber film, aiming at obtaining a super-hydrophobic structure by modifying acrylic rubber by means of a simple magnetic guidance way, so as to reduce the consumption of a functional filler in the super-hydrophobic structure; furthermore, the selection of an acrylate rubber preparation monomer is also a very important aspect, and the structure with a super-hydrophobic property is obtained by using a fluorine-containing (methyl) acrylate monomer and (methyl) acrylic acid long-chain alkyl ester of super-hydrophobic structures and other monomers for cooperation. By the synthetic combination of the two aspects, the preparation method of the magnetic guidance super-hydrophobic acrylate rubber film which has very good hydrophobicity and can be used for a long time is obtained.