基于中国健康与养老追踪调查（CHARLS）全国基线调查的数据，从数量和集中程度两个维度研究了宗族结构对农村公共品供给水平的影响及其作用路径。结果表明：基于数量层面，相较于没有宗族而言，两家均衡型的宗族结构能够显著提高农村公共品的供给水平，而一家独大型和多家混合型的结构影响并不显著。基于集中程度层面，相较于没有宗族而言，高寡占型的宗族结构对村庄的公共品供给有显著正向影响，而竞争型和低寡占型结构并未发挥显著作用。另外，宗族数量通过影响当选者意愿进而影响农村公共品供给，宗族集中程度通过影响当选者能力进而作用于农村公共品供给。

Based on the national baseline survey data of China Health and Retirement Longitudinal Study(CHARLS), this article evaluates the influence of clan structure on public goods supply in rural areas and its effect path from the dimensions of quantity and concentration. The results show that: in the aspect of quantity, compared with non- clan, well- balanced clan structure significantly improves the supply of public goods in rural areas whereas the influence of a single clan monopoly and multiple-clan hybrid is insignificant. Meanwhile, in terms of the centralization level, compared with non- clan, the clan structure of high oligopoly has a significant positive impact on the supply of rural public goods while the competitive and low oligopoly structure fails to play a significant role. Moreover, it is found that the number of clan groups affects the supply of rural public goods through the elected candidates' willingness. The degree of clan concentration influences the supply of rural public goods through the elected candidates' ability.