大连理工大学
In 1957 Gu had started his academic career at Chinese Academy of Sciences at its Institute of Mechanics, Institute of Mathematics, later renamed to Institute of Systems Science. He taught and did research in the fields of operations research, multiple criteria decision analysis, evaluation, and systems engineering. Form 1999 to 2003 he was Professor at Japan Advanced Institute of Science and Technology in its Lab of Socio-Technical Systems of the School of Knowledge Science. Upon his return he proceeded as Professor of Management school of Graduate School, Chinese Academy of Sciences, and as professor of Management School of Dalian University of Technology.