|This study is to interpret the social contributions of the Korean national football team supporters, Red Devils. The background of this issue is related to the present situation of supporters in Korea. The purpose of this paper is to grasp the present situation of supporters, to investigate the recognition of Red Devils, and to discuss the social contributions of Korean national football team supporters, Red Devils. The conclusions are as follows. First, the images of Red Devils were `red colored`(45%), `street cheering`(36%), `Dae! Han! Min! Kuk!`(10%). be the reds`, `oh! Pil seung Korea`. Second, the answers of the question about the relation between cheering activity of supporters and the performance of the football team were; `gives a positive effect psychologically`(72%), `gives pressure on the team`(13%). Third, the effect of supporters activity is to promote `national union`, `community consciousness`, `citizen consciousness`. "Supported by Korea University Post-Doc. Grant in 2003 year"