The chemical properties of aluminum alloy are relatively active, and it is easy to react with acid and alkali. Once it is corroded by strong acid or oxidized by strong alkali, it cannot be recycled, resulting in eternal waste. However, the active chemical properties of aluminum alloys also have certain advantages. For example, aluminum is very easy to combine with oxygen in the air to form a hard aluminum oxide protective layer to prevent oxygen in the air from further corroding metals. Recycling smelting waste aluminum is cheaper and less polluting than smelting aluminum in treatment cost. The development of modern science and technology provides technical support for upgrading the recovery and smelting process of non-ferrous metal materials, making it possible to recover waste aluminum with high efficiency and low consumption. In the future, we should actively develop efficient and pollution-free recycling and dismantling technology of waste aluminum alloys to promote the technical upgrading of recycled aluminum alloys.