Dan McGarry was denied an extension to his work permit last month.
In the interim, he travelled with his wife to Brisbane but when he tried to return on a visitor's visa he was stopped from re-entering Vanuatu by immigration authorities.
The Canadian had lived in Vanuatu for 16 years and his wife and family, who are Vanuatu citizens, live there.
The Supreme Court yesterday voided the travel ban, saying it had no basis in law.