Abstract: Discussion on the composition and influence factors of members' sports social capital from the perspective of social governance is conducive to the rapid development of the national fitness organization. By means of revised questionnaire for social capital of informally-structured sports association members, this paper conducts a survey on members in Wuling Minority Region's 1253 informally-structured sports association members. The results show that social capital scale (5 dimensions: social support, mutual interaction, network relationship, group trust, group aspiration) has good reliability and validity. Academic qualification's positive effects on social support, mutual interaction, group trust, network relationship and package social capital, age's negative effects on network relationship, incomes' negative effects on group aspiration and career's positive effects on mutual interaction and group aspiration are all statistically significant, and the regression equation is established. Management enlightenment is proposed on this basis.

Key words: informally-structured sports associations, social capital, composition, influence factors