Obiora was born in Onitsha in the year, 1946 to parents from Agulu in Anambra State, Nigeria, he studied for one year at Ahmadu Bello University before transferring to the University of Nigeria, Nsukka as a result of pogroms against the Igbo people in northern Nigeria. During the Nigerian Civil, also known as the Biafran War (1967-1970), Udechukwu worked in the Propaganda Unit, and participated in the artists and writers workshops led by the poet Gabriel Okara and the artist Uche Okeke.
He completing his bachelor’s degree in fine arts, with a thesis on Igbo Uli mural art, in 1972, he got his Master of Fine Arts in 1977. Udechukwu became Dana Professor of Fine Arts at St. Lawrence University, in the United States. He lives in Canton, NY.
Obiora has had more than 25 one-person exhibitions in Nigeria, England, Zimbabwe, Germany, and United States.
His work both in Art, writing and others include; His art work is in the collections of National Gallery of Modern Art, Lagos; National Council of Arts and Culture, Lagos; Centre for Cultural Studies, Frankfurt/Main, Germany; Bradford City Museums and Galleries, Bradford, England; Smithsonian National Museum of African Art, Washington, DC; Newark Museum and What the Madman Said, (1990), winner of Association of Nigerian Authors Poetry Prize, 1990.