Southwest Jiaotong University
Mao served as a leader of the China Engineers Association, the Chinese Civil Engineering Society and the China Association of Science and Technology. He has also served as president of Southwest Jiaotong University (from Tangshan Engineering College to Northern Jiaotong University to Southwest Jiaotong University), director of Railway Institute under the Ministry of Railway, president of Railway Scientific Research Center, chairman of Beijing Science Association, honorary president and vice-president of the China Association for Science and Technology, vice-chairman of Jiu San Society, vice-chairman of the Chinese People's Political Consultative Conference (CPPCC), member of CPPCC, and the standing committee member of National People's Congress.