The work aims to review the theory, preparation methods, and latest applications of biomimetic superhydrophobic coatings, providing reference for the development of new biomimetic superhydrophobic coatings. The theoretical model of biomimetic superhydrophobicity was summarized, the preparation methods of biomimetic superhydrophobic coatings were classified and summed up, and the advantages and disadvantages of the preparation methods of biomimetic superhydrophobic coatings were evaluated in combination with relevant applications. The existing preparation methods for superhydrophobic coatings had their own characteristics, but there were still challenges in preparing high-performance biomimetic superhydrophobic coatings. Technical breakthroughs were required to be made through material development, surface structure design, and preparation process optimization. Selecting green and environmentally friendly materials and optimizing surface structure design to enhance the lifespan of superhydrophobic coatings is the mainstream direction for future development in this field.