In view of these problems that paint drying by electricity has high energy consumption and low utilization of primary energy, develops a kind of heating system for paint drying by heat transfer fluid with low energy consumption, presents the components of the system, the major equipment, the function and selecting principle of the equipments. In addition, this paper analyzes the adjustment, operation and economic benefits of the system. It is shown in experiences, compared with electricity heating system, the maximum fall in cost of energy consumption is up to 86%; the utilization of primary energy is increased by 20% for the heating system. by heat transfer fluid. In addition, using this not only meets the temperature requirement of heating process, but also improves the quality of paint drying.