Zinc-zinc-aluminum-magnesium alloy materials are widely used in lighthouse benchmarks. This material features high strength, excellent corrosion resistance, oxidation resistance and thermal stability, etc. It can extend the service life of the benchmark, reduce maintenance costs, and also lightweight the benchmark structure, making the benchmark more flexible, beautiful, environmentally friendly and reliable. In addition, zinc-aluminum-magnesium alloy materials have good formability and can be used to manufacture benchmarks of various shapes to meet different demands. Therefore, the application prospects of zinc-aluminum-magnesium materials in lighthouse benchmarks are broad.