The purpose of this study was to better understand the current situations and relationships among social capital, leisure behaviors, and health of Taipei City citizens. In addition, the ways in which social capital and leisure behaviors could directly and indirectly affect the Taipei City citizens' health was also explored. A survey questionnaire was used to examine the relationships among social capital, leisure behaviors, and health of Taipei City citizens. One thousand subjects were selected from the twelve districts of Taipei City, and 338 copies were counted as effective, which makes the effectiveness ratio 33.8%. Then the data were analyzed using the statistical methods of frequency distribution, factor analysis, and structural equation modeling. Conclusions drawn from the survey results are as follows: Leisure satisfaction was found to be an mediator between the social capital and health. Finally, based on the results and conclusions of this study, practical suggestions are offered for government agencies, leisure service industries, Taipei City citizens, and future research.