This study aims to explore the relationships among performance expectancy, effort expectancy, social influence, facilitating condition, behavioral intention and use behavior of university physical education students in Taiwan. Moreover, it also intends to examine the moderating effects of gender, age, and experience on the UTAUT model. The targets were 19 universities in Taiwan by purposive sampling. A total of 760 questionnaires were distributed and 707 were returned, with a returning rate of 93%. The data were analyzed using SPSS 20.0 and Warp PLS 5.0. The results showed that on the UTAUT model, performance expectancy, social influence, and facilitating condition variables are positively related to behavioral intention; behavioral intention is positively related to use behavior; gender, age, and experiences played a moderating role on the model. The empirical results can provide useful reference regarding the explanatory power of the UTAUT model on university physical education students' usage intention toward social network sites.