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Epoxy resin coatings have been widely researched and applied in the field of corrosion prevention due to their excellent characteristics such as strong adhesion to the substrate， easy application and good corrosion resistance. The modification of epoxy resin with modified nanomaterials can greatly improve the anti-corrosion performance of the epoxy resin coating. Based on the principle for nanomaterials to improve the anti-corrosion performance of epoxy coatings， the research progress on modification mechanisms of several nanomaterials such as graphene oxide， nano-silica， hexagonal boron nitride and molybdenum disulfide as well as the research progress on the modification of epoxy resin coatings were introduced and listed. Finally， the future research and development direction of epoxy coatings were prospected.