Through the screening of film-forming resin and fllers,a kind of anti-corrosion and heat-conductive bottom surface integrated solvent-free coating for heat exchanger was prepared.The film-forming resin was a combination of multi-functional resin and special modified amine,which could meet the needs of high tempera-ture and acid resistance.Through the electrochemical impedance contrast test,an efficient corrosion inhibitor was seleeted,which could resistant the long-term corrosion of Cl^(-).By adding the composite system of self-made high thermal conductivity graphite and graphene,the thermal conductivity of the coating was≥1.5 W/(m+K).Through the heat transfer cofficient test,the results showed that the total heat transfer coefficient of the heat exchanger after coating was reduced about 10%,which could meet the design requirements.The comprehensive performance of the coating meet the design requirements of the heat exchanger in power plant,and can meet the needs of practical use.