Through collating and analyzing the manuscripts of Qian Xuesen, it is found that science popularization is one of the directions he has always attached great importance to and focused on. Guided by Marxist philosophy and based on the thought of Systems Engineering, he explored the science popularization work from three aspects of social value, intension principle, and practice approach, which formed a integrated thought of science popularization. His thought still has important theoretical value and inspiring value for the work of science popularization at present.

Qian Xuesen  /  science popularization  /  Marxist philosophy  /  systems engineering