The power grid’s safety operation is deeply influenced by the icing hazard. Slippery surfaces show a wide range (extensive) of application scenarios in the anti-icing field, but whether they can maintain stable anti-icing performance for a long time in the practical application process has become a key factor. Herein, the aluminum alloy anti-icing slippery surface was prepared using anodic oxidation. Anti-icing durability under corrosion and outdoor exposure conditions was studied. Experimental data indicates that the slippery surface ice adhesion strength tested by 30-day corrosion and outdoor exposure environment is significantly lower than the maximum threshold value of ice adhesion strength (100 kPa), thus showing excellent durability. This study provides useful experiment instructions for the practical application of aluminum alloy anti-icing surfaces.