The purpose of this study was to find the role of leaders in outdoor activities from the constituent elements which was composed of environment, contents and participants of outdoor activities. As the result of study, the followings were found ;1) For the correspondence to environment, contents and participants of outdoor activities, leaders shuld carry out the role as interpreter who interprets about natural resources, in structor who teaches outdoor skills, a nd counselor who helps participants to find one's own place within a social group. 2) Leaders should carry out the role as administrator who manages various program to achieve effectually the purpose of outdoor activities. 3) Leaders should carry out the role as interpreter, instructor and counselor according to purpose and contents of activities, w hile they do the role as administrator in as ource of one's own view of outdoor activities.