Our classification of religious education into the two types, the traditionalist and the modern is the result of our investigation into the intellectual origin of their separation in the history of religious education in the West. This helps our discussion of their history and current development in Taiwan. We pick up Buddhism and Christianity, as the examples to see how they are developing. It is interesting to note that they developed in an opposite direction, Buddhism towards globalization while Christianity towards localization. The education of religion flourishes only recently. In the past, education does not exist, and theological training is traditionalist in the sense that it was designed for the Churches only, and not recognized as regular education by the government and the people. In the later 1980s, Buddhist schools begun to appear and grew up quickly, but still in traditional line. Modern religious education in high education took notice only in the 1990s. As we observe, the two types of religious education are developing separately, and until now, no integration is in sight (as seen in the West). Human kind has to pay a heavy price for intolerance as seen in the incident of 11 September. Therefore, in our view, an inter-religious dialogue is a prerequisite to resolve international conflict and maintain world peace. In this sense a religious education with an integration of both traditionalist and modern approach, is the first and most important step for the future.