Research On System Science and System Complexity

It is well known, the system science is highly related to research on 揷omplexity of system”.The development of system science in China from the point view of modern science and technology architecture is summarized in this article. The three layers of system science are also described. The basic theory research layer includes systematology, the technical science layer includes engineering cybernetics and operational research, and the engineering application layer includes various kinds of system engineering. In addition, there exists a bridge named搒ystematics?connecting system science with Marxist philosophy. Finally, some topics of 揷omplexity?proposed in the past and nowadays are also summarized.