Both the laser energy density and scanning speed have a greater impact on the cleaning quality. The cleaning quality of the laser gradually becomes better with an increase in the laser energy density or decrease in the laser scanning speed. When the laser energy density and scanning speed are 4.45 J/cm² and 8 mm/s, respectively, the top-coat can be completely removed and the primer remains intact, with the effect closest to the original thickness of the paint layer. When the laser energy density and laser scanning speed are 4.45 J/cm² and 5.5 mm/s, respectively, the composite coating can be completely removed with the perfect microstructure of the anodic oxide film. Similar to those of the original anodic oxide film, the oxygen content of about 40% and the surface roughness R_a=1.138 μm are observed. When the parameter combination is 3.56 J/cm² and 6 mm/s, the top-coat can also be completely removed, with the primer retained well. When the laser energy density and scanning speed are 4 J/cm² and 5 mm/s, respectively, the composite paint layer can be completely removed, and the oxygen content of the anodic oxide film is about 34%. When the combination of parameters is 3.56 J/cm² and 4.5 mm/s, the anodic oxide film produces elastic vibration stripping.