The voluntary association is the mediate between society and individuals; it serves as a prime engine for social changes. Therefore, it is very important to find out who the voluntary association participants are. Previous research has focused primarily on demographic attributes of voluntary association participants. In addition to the demographic factors, this study investigates the effects of job characteristics, work-related attitudes, perceptions of social inequality, and resource constrains on the probability of participation. Based on 1996 ¡§ Taiwan Social Change Survey,¡¨ this study uses logistic regression to model the determinants of participation in voluntary associations of more than 2000 respondents. The result shows that job satisfaction is negatively associated with participation rate and job stability has a positive effect on participation. With respect to the perceived causes of social inequality, situational attribution is positively correlated with probability of participation. Finally, respondents with lower family responsibilities and higher income are more likely to participate in voluntary association.