Most research concluded that the development of Islamic tourism was associated with business and economic factors, namely the matter of seeking benefits from the development of Muslim tourism behavior. Research on Islamic tourism only made the connection between religion and tourism behavior but it did not examine the increasing awareness of Muslims in their obedience to sharia. This article aimed to compare the results of research on the development of Islamic tourism in various countries, both those with a majority of Muslim population and those which are not. This study applied a qualitative approach and chose a literature study to examine the data. In addition, research studies on the development of Islamic tourism provided other variations of the causes of the tourist variants development, namely political factors. The development of Islamic tourism in North Africa, Middle East and Asia, in general, is an impact of Islam after the WTC tragedy and in Thailand, Islamic tourism is part of conflict resolution in Southern Thailand.