The purpose of this study is to examine the relationship among university student’s leisure commitment, psychological well-being and self realization. The model of this study suggested that leisure commitment affects on psychological well-being and self-actualization, and psychological well-being affects on self-actualization. Questionnaire for actual proof analysis was developed based on precedent research. The collected questionnaires have gone thought the process of data coding and frequency analysis, reliability analysis, factor analysis, regression analysis were conducted through SPSS 15.0. As the result of verification of the suggested study model, almost all the appropriateness indexes were substantiated in the evaluation and were explained causal relationship very well. Therefore, the model was determined to be an appropriate model for the purpose of the study. The implications based on the result of the analysis from this study are as follows. First, leisure commitment affects of positive on psychological well-being and self-actualization. Therefore, Need financial help or diversified support such as system improvement of the country for continuous commitment of leisure activity to university students. Second, Cognitive Commitment affects on psychological well-being more than Behavioral Commitment. When individual’s perception or emotion is desirable and positive about leisure that psychological well-being is improved more than Behavioral leisure. This fact suggests the need for psychological research in leisure studies. Therefore, we need not only behavioral research, but also psychological research to leisure studies. Third, psychological well-being affects of positive on self-actualization. Namely, if leisure commitment are higher, psychological well-being is improved. Improved psychological well-being affects of positive on self-actualization. Thus, essential function of leisure that psychological well-being and self-actualization can be accomplished through improved leisure commitment.