Abstract: The composition of Al-Zn-In-Cd sacrificial anode materials is optimized through orthogonal test and the Al-3.5Zn-(0.02In)-0.01Cd sacrificial anode material is determined. The properties investigation manifests that the electrochemical performance of the material meets and exceeds the national standard. Effects of alloying and impure elements on properties of the sacrificial anode materials are also discussed in this paper.