The purpose of this study is to examine the experience of interaction and communication inter-religious harmony by young millennial generations of Islam and Hindu in Lombok West Nusa Tenggara. It is important because many phenomena of the involvement of the younger generation in radicalism-extremism groups and terrorism networks. Then, a lot of violence action and intolerance in the name of religion still often occur in the community. This study uses an interpretive phenomenological analysis approach to reflect the direct experiences of informants as millennial generation. The method of data collection is deep interview and literature studies to strengthen the study. The sampling technique is purposive sampling. The informants interviewed have several criteria; they are the young millennial generation, Islam and Hindu, active in organizations and active in social media. The results of the study show that the millennial generation of Islam and Hindu in Lombok practice the principles of religious moderation in their daily lives, they are have national commitment, tolerance, resist violence and respect for tradition and culture. The principles and attitudes are obtained from their religious and cultural heritage. The next finding, conflicts or contradictions in a socio-religious relationship must are resolved by inter-religious dialogue to managing and negotiating contradictions in relationships. To strengthen interreligious harmony is required narrative to create and share in social media or digital media to counter narrative of radicalism and violence in the name of religion.