193 1 was admitted to Tsinghua University, and 1942 received his doctorate from the University of Toronto. 1946 in may, Qian Weichang returned to China and was employed as a professor in department of mechanical engineering, Tsinghua University, and concurrently as a professor in Peking University and yenching university. Vice Chairman of the 6th to 9th Chinese People's Political Consultative Conference, Vice Chairman of the 5th, 6th and 7th Central Committee of NLD, and Honorary Chairman of the 7th, 8th and 9th sessions. He used to be the president of Shanghai University for Science and Technology and Shanghai University, the provost and vice president of Tsinghua University, the honorary president of Nanjing University, Nanjing University of Aeronautics and Astronautics and Jiangnan University, the honorary president and chairman of Jinan University, the honorary chairman of Yangzhou University and the honorary president of Hua Yao Middle School.
Qian Weichang specializes in applied mathematics, mechanics, physics and China informatics, and has made great achievements in the fields of elasticity, variational principles and perturbation methods.