Ko Gyoung-bin graduated from Seoul National University in 1980 and earned an MA in international relations in 1993 from Durham University in England.
Ko worked at the Ministry of Unification between 1986 and 2009, serving as head of the social and cultural exchange bureau (2004), head of the Kaesong Industrial Complex business support team (2006), acting chief of the Inter-Korean Economic Cooperation Headquarters (2007), chief of the policy and public relations headquarters (2007), and head of the settlement support office for North Korean defectors (2008).
Between 2008 and 2011, Ko was a visiting lecturer at Ajou University and Ewha Womans University and a collegiate professor at Seoul Cyber University.
From 2011 to 2013, he served as chairman of the South/North Korea Exchange and Cooperation Support Association. Since 2014, he has been a director at the Peace Foundation.
During his time at the Ministry of Unification, Ko attended as a South Korean delegation member for the inter-Korean Red Cross talks of 2000, the Inter-Korean Economic Cooperation Committee in 2006, a inter-Korean ministerial summit in 2007, and the Joint Committee for a West Sea Peace and Cooperation Zone in 2007.


1980년 서울대학교를 졸업하고, 1993년 영국 더램(Durham)대학교에서 국제관계학 석사 학위(M.A in International Relations)를 받았다.
1986년부터 2009년까지 통일부에서 근무하였다. 통일부에서는 사회문화교류국장(2004년), 개성공단사업지원단장(2006년), 남북경제협력본부장 직무대리(2007년), 정책홍보본부장(2007년), 북한이탈주민정착지원사무소장(2008년)을 역임하였다.
2008년부터 2011년까지 아주대학교, 이화여자대학교에 출강하였고 서울사이버대학교의 대우교수로 재직했다.
2011년부터 2013년까지는 남북교류협력지원협회장을 지냈으며, 2014년부터 현재까지 사단법인 평화재단의 이사로 있다.
통일부에 근무하면서 남북적십자회담(2000년), 남북경제협력추진위원회(2006년), 남북장관급회담(2007년), 서해평화협력지대추진공동위원회(2007년)의 남측대표로 회담에 참여하였다.