Jiang Dongdong was born in October 1976 in Lixin County, Anhui Province. He joined the Chinese Communist Party in June 1996 and began his professional career in July 1998. He spent much of his early career in Shanghai, holding various administrative and political roles in Jing’an District, including deputy director of the Investment Promotion Office, Deputy Secretary of the Party Working Committee of Jing’ansi Community (sub-district), Secretary of the Discipline Inspection Committee, Deputy Minister of the Organization Department of the District Committee, and Deputy Secretary of the District Political and Legal Affairs Committee.[3]
Jiang later served as Director of the Comprehensive Management Office, Director of the Letters and Visits Office of the District Party Committee and Government, and Secretary of the Party Leadership Group.[4] He also served as deputy director of the Shanghai Municipal Letters and Visits Office and was dispatched to the Xinjiang Uyghur Autonomous Region as part of Shanghai's paired assistance program. There, he served as Deputy Commander of the Eighth Batch of the Front Command for Paired Assistance to Xinjiang, Commander of the Karamay Sub-command, Vice Mayor of Karamay, and later as Deputy Secretary of the Karamay Municipal Party Committee.[4]
In January 2019, Jiang was appointed Chinese Communist Party Deputy Committee Secretary of the Putuo District of Shanghai. In October 2019, he became Deputy Secretary of the District Committee and Secretary of the Party Leadership Group of the Putuo District Government. He was named Acting District Mayor in November and confirmed as Mayor in January 2020.[5] In August 2021, Jiang assumed the concurrent role of Party Secretary of Putuo District, and in September, he was appointed as full Party Secretary.[6][7]
In October 2024, Jiang Dongdong was transferred to Jiangsu to serve as Party Secretary of Taizhou and First Secretary of the Party Committee of the Taizhou Military Subdistrict.[8]
Jiang Dongdong is a representative of the 20th National Congress of the Chinese Communist Party. He served as a member of the 12th Shanghai Municipal Committee of the Chinese Communist Party and was a deputy to both the 15th and 16th Shanghai Municipal People's Congresses (with his qualifications terminating in December 2024). In January 2025, he was elected as a deputy to the 14th Jiangsu Provincial People's Congress through by-election.[9]