Abstract: Thermal vacuum test equipment is one of the indispensable facility in aerospace field,all spacecrafts have to make a series of thermal vacuum tests on the ground before launch.In this paper,the main technology of temperature-adjustable heat sink in China is introduced,the working principle of different processes is explained in detail,the advantages and disadvantages as well as the application range are briefly analyzed.Finally,it provided references for the development and manufacture of thermal vacuum test equipment in the future.