On April 1st, 2017, Dong was promoted from regional intelligence operations to a national posting in Beijing, appointed director of the Political Department of the MSS (Bureau No. 3). He was promoted quickly within the agency, and almost exactly a year later in late April 2018, he was appointed to his current position, Vice Minister of State Security. With higher office, his political stature continued to grow, serving as a representative at the communist party's 18th and 19th National Congress, and serving as a member of the 13th National Committee of the Chinese People's Political Consultative Conference. In March 2019, he was named a vice president of the Eighth Council of the .