The invention discloses a super-hydrophobic surface based on zinc and a preparation method of the super-hydrophobic surface. The super-hydrophobic surface is a product after chemical modification of a flake-like micro-nano structure surface grown out of a zinc substrate surface. The thickness of a flake-like micro-nano structure is 0.03-5 millimeters, and the size of the flake-like micro-nano structure is 0.5-10 millimeters. A static contact angle to water is over 150 degrees. The preparation method is as follows: the zinc serves as a substrate; a soluble zinc salt solution is utilized to conduct a chemical reaction in room temperature; a special coarse structure is constructed on a zinc sheet surface; a material with low surface energy is used to conduct the chemical modification on the surface of the structure; and then the super-hydrophobic surface based on the zinc is obtained. The super-hydrophobic surface based on the zinc and the preparation method of the super-hydrophobic surface are free from fluorination treatment, simple in method and easy to operate. After a test, compared with the zinc substrate, the hydrophobic property of the super-hydrophobic surface based on the zinc is improved remarkably. The preparation method of the super-hydrophobic surface is applicable to all common soluble zinc salt solutions.