A superhydrophobic surface with particular wettability built on the aluminium alloy matrix could accomplish the functions of corrosion resistance, anti-icing, lubrication and drag reduction, indicating greater application value with market prospects. The preparation methods of superhydrophobic aluminum surface include chemical etching, anodizing, electrochemical deposition, and hydrothermal process. Chemical etching, anodic oxidation and hydrothermal methods are easy to operate and widely used, but the strong acid, strong base and other substances used in the preparation process are harmful to the environment and human bodies. Laser etching can control the surface microstructure, but it is difficult to be used in a wide range due to the expensive equipment. In order to expand the application field of superhydrophobic surface, the major research direction will be developing a simple method to prepare multistage micro-nano rough structure, using adhesive layer to strengthen microstructure and constructing self-repairing superhydrophobic surface.