The rapid development of high and new technologies such as space, distant sea, network, polar regions and artificial intelligence has greatly expanded the "fields" and "interests" of traditional national security. The battlefield of games and competition has extended to new areas. As the strategic commanding height of the future war, space has become a new stage for the fierce game between big countries. Therefore, all the military powers in the world are trying their best to create conditions for their countries to compete for space and build a military space power system. China has made great achievements that attract worldwide attention, such as a series of space projects such as Shenzhou, Tiangong and Beidou navigation satellite system.