This text explore the forms of a religious pluralism abounding in South-Benin and its manifestations in an urban and frontier area crossed by many cultural influences. The contacts between vodun, Islam and Christianity are bound to the urban development for the last three centuries. In the last few decades, one attends a phenomenal flourishing of new churches in the urban area, dominated in number by the prophetic and Pentecostal movements. The absence of a political instrumentalisation of the religious identities is not doubtless alone to explain the durable and peaceful cohabitation between churches. The civil peace constitutes well the main economic resource of the Benin and politicians are used to protect it.