1929 was admitted to jiaotong university. 1934 graduated from department of mechanical engineering, Jiaotong University, and was admitted to study in the United States by Tsinghua public school in the same year. 1935 studied in the United States and entered the aviation department of MIT. 1936 master of aviation engineering at Massachusetts Institute of Technology, and then transferred to the Aviation Department of California Institute of Technology. 1939 received a doctorate in aviation and mathematics from California Institute of Technology. 1943 Assistant Professor, California Institute of Technology. 1945 Associate Professor, California Institute of Technology. 65438-0947 Professor of MIT. 1949 Director and Professor of Jet Propulsion Center of California Institute of Technology.

Qian Weichang was born in Wuxi, Jiangsu Province, and is the nephew of Qian Mu, a master of Chinese studies. The name "paddock" was invented by Qian Mu. Qian Weichang was admitted to the history department of Tsinghua University, and the September 18th Incident happened in the same year. Qian Weichang decided to transfer to the Department of Physics to revitalize China's military strength. Wu, the dean of the department, initially refused his transfer request and was moved by his sincerity. Qian Weichang also proved his strength through diligent study. He was admitted to Tsinghua University Research Institute and won a high scholarship. He studied spectral analysis with his tutor Wu.

When I was a teenager, I lived in Beijing with my father and studied at Kant Middle School, where Cai Yuanpei was the principal. 1936 graduated from Tsinghua University. 1937 went to France to study under the Curie couple (the daughter and son-in-law of Madame Curie, a famous scientist). 1940 was awarded the national doctor's degree in France, and 1946 was awarded the Henry-Bader prize for microphysics by French Academy of Sciences. He used to be a researcher and research tutor at the French National Scientific Research Center and was awarded the Medal of Honor of the French Legion. 1948, after returning to China, successively served as professor of physics department of Tsinghua University, deputy director and director of Institute of Modern Physics of Chinese Academy of Sciences (later Institute of Atomic Energy), secretary-general of academic secretariat of China Academy of Sciences, deputy director of Second Machinery Department (Nuclear Industry Department), vice president of China Academy of Sciences and president of Zhejiang University, vice chairman and honorary chairman of China Association for Science and Technology, vice chairman and chairman of Chinese Physical Society, and honorary chairman of China Nuclear Society. 1955 was elected as a member of China Academy of Sciences. 1956 participated in the determination of China's first scientific plan 12, and was called the "San Qian" of China's scientific and technological circles by Premier Zhou Enlai together with Qian Weichang and Qian Xuesen.