Mr. Chiang passed the imperial examinations with the degree of Chinshih in 1904.
Under the Manchu regime, he served in various capacities. After establishment of the Republic, Chiang Tseng-yi was appointed councillor of the Ministry of Communications in 1917-1918. Mr. Chiang served as a director of the department of the telegraphs and telephone establishment in 1919. Since 1920 he assisted in the organization of the Communications University. From 1924 till 1928 Chiang Tseng-yi took the post of a Director-General of the Telegraph Administration.