Regarding the current high-acceleration reliability test system of hydraulic components,whether it is the alternate temperature load profile loading of rapid temperature rising,rapid temperature dropping,and constant temperature maintenance,or other acceleration factor load profile loading that maintains a constant system temperature,temperature is always a challenge.The control is difficult,as well as the shortcomings of large error and long response time in achieving the target temperature.Based on the theory of energy conservation and heat transfer,a high-acceleration reliability test temperature control system with dual adjustment of heating system and cooling system was designed.This system can be used to quickly and accurately achieve the required temperature of the high-acceleration test system.Through calculation,the target temperature error of the entire high acceleration test system can be controlled within 0.1 ℃,and the reaction time to reach the target temperature can be controlled within 3 s.