Polymer cement-based composite material is high performance composite material because it has good thermal insulation and sealing performance,several of material slurry were prepared in accordance with different proportion of the raw materials including cement, emulsions and water. And they were painted on polishing smooth tin plate, the experiments of normal temperature conservation, ultraviolet ray aging, saline soak and outdoor exposure were done and the results were contrasted, which proved the excellent anti-corrosion effect of this material. And the understanding corrosion-resistant properties were also obtained combined with the curve of coating’s performance change before and after corrosion tests, which provided experiment evidence for application of this material in anti-corrosion area.