|（1.School of Physical Education，South-Central University for Nationalities，Wuhan 430074，China；2. School of Physical Education，Jishou University，Jishou 416000，China)
Abstract: Based on social capital theory, the authors designed the social capital questionnaire for informal structure sports association members by means of LiKert’s five-point scale, investigated 1 253 informal structure sports asso-ciation members in Wulingshan district. The results showed that the social capital scale (including such 5 factors as mutually benefiting and interacting, network relationship, community trust, community will and social support) of informal structure sports association members had good reliability and validity. Single factor analysis of variance showed the followings: the network relationship difference of informal structure sports association members of dif-ferent genders was highly significant; the network relationship and community will differences of informal structure sports association members of different age groups were statistically significant.
Key words: sports sociology；informal structure sports association member；social capital composition；China