Abstract: The corrosion prevention principle of graphene composite materials was introduced, and the research status and existing problems of graphene and graphene oxide protective films in the field of metal corrosion prevention at home and abroad were summarized. A brief introduction was given to the preparation process and effectiveness of modified graphene composite coatings. The application of modified graphene composites in metal protection was reviewed from four aspects: inorganic nano oxide/graphene composites, polyaniline/graphene composites, polyurethane/graphene composites, and silane/graphene composites. The main problems of graphene composites in China were pointed out, and the research direction of graphene composites in the field of metal corrosion protection was discussed.