He received his education at Nelson Park School and Napier Technical College. He was on the executive of the North Island Waterfront Association for six years, and president of the Napier Watersiders Union for ten years. He represented the electorate of Napier in Parliament from 1966 to 1981, when he retired and was succeeded by Geoff Braybrooke.
Both Christie and Braybrooke were described as Labour "stalwarts who effectively held the electorate in a tight grip".
He died on 13 June 2001. Christie had been married to Betty Christie, and had three children.
He was a member of the Napier Portuguese Conciliation Committee, and vice-chairman of the Napier Portuguese Safety Committee. He was appointed a Member of the Order of the British Empire (Administration Member of the Order of the British Empire) in the 1985 New Year Honours, for public and community service.