The purpose of this thesis is to study how the church proclaims the Gospel and promotes New Evangelization through social media in modern society. In particular, this study selects the YouTube platform, where modern people spend the most time and which is used the longest across all age groups due to its accessibility and ease of information gathering, to investigate how the values of the Gospel and the message of Christ can be effectively delivered and integrated within it, and to seek new methods.In modern society, social media is a means of basic communication, it also shapes new cultures and values. It represents a shift from the past's unilateral and monopolistic communication structures, creating an interactive communication environment where users can freely share information and opinions. Such changes are impacting the one-sided communication, traditionally centered around the clergy within the church, affecting the form of the church within Korea as well. In an age where social media exerts influence on various aspects of human life, the church is encouraged to actively use these media to strengthen bonds with people and enhance communion with God.Based on the purpose and direction of the media ministry, the study investigates and analyzes the current status of the Catholic Church's use of the YouTube platform, along with the viewer gender ratio, age distribution, and specific viewer demographics. This analysis would helped the church to present revitalizing methods for producing ecclesial content in themes and styles suitable for today's diverse groups. Furthermore, it suggests a pastoral direction for the church in the era of social media.Thus, social media today represents both a possibility and an opportunity for the church, which seeks to realize New Evangelization. Further discussions and research in this field will aid the church in establishing more concrete and practical pastoral plans and strategies for using social media.