Abstract: The Republic of Korea underwent intensive industrialization in the 1960s – 1970s, followed by a range of sociocultural transformations. The society suffered changes, and the fact that the government restricted freedom in sociopolitical environment and undertook unpopular economic decisions made this process even more painful. This led to the formation of civil opposition. The composition of the participants in the movement against the dictatorship was diverse, and all of them to one or another extent infringed on their rights. An interesting nuance of the movement for democracy in South Korea is the role of the Christian Church in its consolidation. The subject of this research is the Christian Church in the movement against dictatorship in the Republic of Korea. The goal is to analyze the process of the Christian church's joining the protest movement. The questions of interaction between the society and religious circles, the level of Church engagement in the social processes remain on the agenda in many countries. The novelty of this work is defined by articulation of the problem. The emphasis is placed on the motives of social participation of the Christian Church in South Korea, its interaction with the society and government structures. The following conclusions were made: joining the antigovernment movement by the Protestant and Catholic churches in South Korea is first and foremost associated with their pursuit to expand their range of influence, increase the number of believers prevailing in the competition, and secondly – with the response to authoritarian methods of governing the country. The interaction between society and the Church within the framework of democratic movement was mutually advantageous. The level of involvement of various religious organizations differed, but all Christian denominations represented in South Korea in one way or another proved themselves in the fight against the dictatorship.