Čedomir Antić has been a fellow at the Institute for Balkan Studies of the Serbian Academy of Sciences and Arts since 2000.

Antić's book, Ralph Paget: A Diplomat in Serbia, was awarded by North American Society for Serbian Studies as the best monograph published in 2006 written in English.

Since November 2022, Čedomir Antić is a professor at the Department of History, Faculty of Philosophy in Belgrade.

Antić has published several books on the modern and contemporary political history of Serbia and the Serbs, including Tha History of The Republic of Srpska (Istorija Republike Srpske, 2015), Republicanism in Serbia (Republikanizam u Srbiji, 2022), and the New Serbian Historical Atlas (Novi srpski istorijski atlas, 2022).

[17][18][19][20] He was a member of the first executive board of the University of Belgrade since the beginning of the democratic changes and took part in the governmental commission for drafting the Public Holidays Law.

In 2002 he published his state and national program "The Draft: Independent Serbia in the European Union" ("Nacrt: Nezavisna Srbija u Evropskoj uniji").

After the establishment of the first Koštunica government (DSS – G17 – SPO/NS), Antic became the political advisor of Deputy Prime Minister Miroljub Labus.

However, his firm stand over Montenegro and Kosovo, and popularity within G17 Plus, alienated the party leadership from Antic.

NK regularly publishes annual reports about the Political rights of Serbs in the region (Izveštaj o političkim pravima srpskog naroda u regionu), and has published several influential documents and platforms regarding social and political reform in Serbia.