University is a place that continuously reads changes in times and people, responds appropriately, and at the same time strives to learn how to plant the unchanging truth in changing times and people. The current concern for churches and youth ministers is the decrease in the number of church members and the drastic decrease in the number of youth in churches. The Korean church must reconsider its reality diagnosis and strategies for the next generation. This is because giving up on the younger generation leaving the church is giving up on the future of the church. Based on a proper understanding of the identity and history of churches and Christian universities, this study considered what churches and Christian universities should focus on and do about the serious level of youth disengagement. As youth ministry that should be done within the church, it first presented religious education for the new Deuteronomy generation, youth who have not experienced the revival of the church and are influenced by society's negative perception of the church. At the same time, the researcher emphasized youth ministry that frees not only the youth but also their parents from the dualistic lifestyle and oppression of guilt that had been passed down from their parents' generation. As for strategies outside the church, youth ministers were asked to first understand churches and universities from a missional perspective and encourage themselves and their students to live out their missional calling not only in the church, but also in school and society. Furthermore it was proposed to train missionaries at school linking universities, local schools, and local churches led by denominations.