Jiang was born in 1913 in Guanyun County, Jiangsu Province. July 1936, Jiang graduated from the Department of Biology, Zhejiang University. Just after his graduation, Jiang became a lecturer in the same department. In February 1937, Jiang married Xu Ruiyun, who later became the first Chinese woman who had a PhD degree in mathematics.[citation needed]
In May 1937, both Jiang and Xu were rewarded by scholarships that allowed them to study in Germany. In 1940, both received Ph.D.s from the Ludwig-Maximilians-Universität München (LMU), in Biology and in Mathematics.[citation needed]
Jiang went back to China and became a professor in the Department of Biology at Zhejiang University. He later became the director of the department.[citation needed]
After 1949, Jiang served as the vice-president of Zhejiang Normal College (current Zhejiang Normal University), the president of Hangzhou Normal College (different from the current Hangzhou Normal University, the Hangzhou Normal College mentioned here later was merged into the Hangzhou University, and in 1998, Hangzhou University was merged into Zhejiang University). He also served as the vice-president of Hangzhou University and later became an adviser of the university.[citation needed]