The purpose of this study is to investigate the influence of fun factor of sports tourism on leisure flow and psychological happiness. The subjects of this study was selected by sports tourism participation in Jeju-do. The final 278 responses collected by convenience sampling method, were used in the data analysis procedure. The questionnaire for the formalization factor of fun factor by Kim(2009), the questionnaire for the formalization factor of leisure flow by Lee(2008), and the questionnaire for the formalization factor of psychological happiness by Oh(2007). The statistical methods such as reliability analysis, exploratory factor analysis, confirmatory factor analysis, and structural equation model analysis were used to analyze the collected data. From the analyses of the data, the study reached the following conclusions: Firstly, fun factor of sports tourism are influence positive leisure flow. Secondly, fun factor of sports tourism are influence positive psychological happiness. Thirdly, leisure flow of sports tourism are influence positive psychological happiness.