The purpose of this study was to examine the relationship among passion, vitality and psychological well-being in leisure
sport participants. Total of 212 leisure sport participants were analyzed, the data was analyzed by exploratory factor analysis,
confirmative factor analysis, correlation analysis, reliability analysis and structure model analysis using SPSS 15.0 & AMOS 7.0
programs. Factor analysis showed that passion had 2 dimensions: harmonious passion and obsessive passion, psychological
well-being had 2 dimensions: happy and satisfaction. The results were as follows. first, passion of leisure sport participants
had significantly positive effect on vitality. Second, passion of leisure sport participants had not significant effect on
psychological well-being. Third, vitality of leisure sport participants had not significant effect on psychological well-being. These
results were discussed based on previous literature and theory.