Abstract: The use of "smoke tower" technology makes the residues of corrosive medium in flue gas into the cooling tower with flue gas, the corrosion is greatly enhanced in tower, especially the acid corrosion environment will directly lead to the development of the tower wall of concrete durability performance degradation. Under the selected concrete strength grade, the acid corrosion test of different kinds of anticorrosive coatings is carried out. The use of anti-corrosion coating can effectively prevent the corrosion of the concrete from the acid medium. Under the same acid corrosion condition, the corrosion resistance of the organic film coating is better than that of inorganic permeable coating. The surface of the cement-based permeable crystalline coating has the phenomenon of epidermal shedding in the acid environment, which should be considered in the use of the acidic environment to affect the stability of the coating.