Anodizing uses aluminum or aluminum alloy products as the anode, which is placed in the electrolytic solution for energization treatment, and the transition of the surface shape to form an aluminum oxide film is converted to silver by electrolysis, and anodic oxidation is performed. After anodizing, the surface layer of aluminum can generate an oxide film of several particles---hundreds of particles. Compared with the natural oxide film of aluminum alloy, its corrosion resistance, wear resistance and decoration have obvious changes and improvements.