Emerged as a movement within the evangelical wing of Protestantism in the 20th century, Pentecostal Christianity is a mystical religious movement that seeks holiness in a purely individual experience and emphasizes spiritual unity. This movement, assumed an important role in spreading Christianity to the world is claimed to be the second largest group after Roman Catholicism with its different discourse and organization structure. Its mystical aspect, especially affects churches in the northern hemisphere as well as the southern hemisphere and the (...) movement's activities are considered a harvest of new souls collected by the Holy Spirit. Therefore, this situation raises the question of what is the place of the movement within the Christian unity. For this reason, it is important to examine the participation of the movement in the issues of ecumenical unity since its emergence in the North of America.This article aims to reveal the relationship between Pentecostal Christianity and the global ecumenical movement and tends to provide a way of thinking about ecumenism encouraging Pentecostal participation in the ecumenical mission. Although Pentecostal movement defined as an ecumenical spirit has shown a negative attitude towards formal ecumenical processes in the early period, it has recently changed the way of approaching regional and international ecumenical negotiations. The aim of bilateral dialogues between Pentecostals and other historical churches seems to be on developing mutual respect and understanding rather than structural unity. The next will show whether these visible associations for now will become a realistic dialogue goal that includes structural unity in the future, or to form a spiritually invisible unity that moves freely in spirit without the need for a structural unity. (shrink)