Abstract: Engineering thermal physics is applied widely in aerospace, forming a new field of space thermal physics in solving many specific engineering problems. With the advance of China's deep space exploration, and the applications of engineering thermal physics in the probe development, the spacecraft thermal control technologies and the thermal protection technologies are in gradual progress. Based on the developments of the deep space probe technology system, this paper reviews especially the thermal design, the thermal analysis, the thermal test, and the thermal control hardware, as well as the prospect of further contents of space thermal physics in the development of deep space exploration.