The work aims to reduce the energy consumption by improving the design of the heat exchanger structure of the gravure press. By analyzing the structure of heat exchanger, heat transfer by heat radiation of the heating pipe, convective heat transfer and heat loss, the energy saving of heat exchanger was designed with the help of TRIZ theory. Moreover, the improved scheme was verified based on the mathematical algorithms for heat transfer. With the polished and unoxidized brass (emissivity: 0.05) as the material of copper-based brazed finned tube, the heat-producing efficiency of finned tube was increased from original 88.4% to 96.1%. The hot air was heated from 80 ℃ to 84 ℃. The heat radiation rate of the heat exchanger can be reduced obviously and the heat-producing efficiency of the heat exchanger can be improved by using the finned tubes with appropriate finned coefficient and emissivity.