In 1974 he went to the University of Ankara to study law.
In 1991 he was elected to the Turkish Parliament, later joining the Democracy Party (DEP). On 8 December 1994 he was convicted, together with other DEP deputies Leyla Zana, Hatip Dicle and Selim Sadak, of membership in an organization (PKK) and sentenced to 15 years in prison. An early day motion in the House of Commons of the United Kingdom in 2001 mentions him as an Amnesty International prisoner of conscience.
On his release in 2004 he helped found the Democratic Society Party with Leyla Zana, Hatip Dicle and Selim Sadak.
- "A future of hope for Turkey and one of hope and peace for the Kurds". American Kurdish Information Network. 2000-03-29. Retrieved 2011-10-14.
- "LEYLA ZANA". House of Commons. 2001-05-03. Retrieved 2011-10-14.
- "Orhan Doğan passes away". Sunday’s Zaman. 2007-06-30. Retrieved 2011-10-14.