The sponsorship system of the Arab Gulf countries comprises rules and regulations that tie the residence of a migrant worker to his/her sponsor in the country. This paper offers an in-depth examination of the legal framework of the sponsorship system of the countries of the Gulf Cooperation Council (GCC) – Qatar, Saudi Arabia, Kuwait, Bahrain, Oman and the United Arab Emirates. It looks at different aspects of the system starting with the requirement for sponsorship and ending with the rules on absconding and repatriation.