Abstract: Metallic corrosion is a major global problem that could cause severe damage to national econo-my; therefore, it is imperative to develop new technologies of metal protection. Being an one-atom layer of graphite, graphene possesses unique two-dimensional structure and excellent physical and chemical prop-erties. Due to its properties of large surface area, penetration resistance, thermal stability and chemical sta-bility, graphene demonstrates great potential for future applications in metal anticorrosion coatings. In this paper, the structures and properties of graphene are introduced, with its preparation methods and character-izations discussed, and the latest development and progress on the applications of graphene and its compos-ites in metal anticorrosion presented, which mainly includes the following aspects: 1) the mechanism be-hind the increasing corrosion resistance after graphene coating, 2) applications of graphene and its compos-ite in metal anticorrosion, 3) application prospect of graphene in ship anticorrosion coating. Finally, further research expectation is briefly discussed.