Practice is the most basic viewpoint of Marxism. The so-called sociality and historicity illustrate the characteristics of practice from the horizontal and vertical angles respectively. Practice is a subjective and objective activity, which must be carried out in a certain time and space. The so-called sociality of practice means that human beings carry out social practice in the form of society. The so-called historicity of practice means that human social practice runs through the development of history. For example, the great achievements of China's space industry are essentially social and historic practical activities. Thanks to the unremitting efforts of countless scientists in different times and the joint cooperation of people in different fields in the same era, China's space industry has made great achievements today. With the joint support of the people of the whole country and the joint efforts of scientists, China's space industry will continue to develop.