He began his political career in Beijing, then moved to the Tibet Autonomous Region (TAR), where he served as deputy party chief and secretary of its Political and Legal Affairs Commission.
In April 2012, as part of a wider reshuffle, Deng was named head of the TAR Political and Legal Affairs Commission (Zhengfawei), the youngest provincial-level Zhengfawei chief at the time.
[1] In April 2013, he was named Chinese Communist Party Deputy Committee Secretary of the Tibet Autonomous Region.
In March 2017, Deng was transferred to Sichuan province to serve as deputy party chief there.
At the time of his transfer, Deng, 48, was the youngest provincial-level party chief in the country.