Islam coming to Indonesia is not coming to an empty land, but its people have built up on a strong tradition and culture. As an initiative step, the preachers used the dialectical approach of culture. Nusantara Islam is a religious expression that is in accordance with the local culture of the archipelago, because there is a dialectic between religious texts and local Nusantara culture and traditions. However, Nusantara Islam has been misunderstood by the notion of radicalism, this group does not accept acculturation of culture in religion. So that the negative view of the Nusantara Islam in it accommodates local cultural rituals. So this paper aims to discuss how the dialectics of culture and religion in the context of the spread of Islam ...