我国中小企业在国民经济中发挥重要的作用，然而长期以来中小企业普遍遭遇融资困境，需要探索新的融资渠道。近年来，我国私募股权基金发展迅猛，可以为中小企业融资提供新的途径。本项目以家族式中小企业私募股权融资为研究对象，基于我国制度环境背景和家族结构变迁趋势，运用计量分析、案例分析、企业史分析等实证分析方法，解决以下三个关键问题：（1）研究家族治理对私募股权融资可得性的影响机理；（2）分析私募股权融资对家族治理结构和家族治理绩效的影响效果，并且构建案例库；（3）探讨社会资本在家族式中小企业私募股权融资中发挥作用的边界条件。.本项目的研究意义：（1）有助于丰富和发展融资理论和社会资本理论，并可以基于我国实际整合学术界的争论；（2）可以为中小企业引进私募股权融资提供指导，为私募股权投资公司选择和进入中小企业提供建议，为政府部门发展私募股权缓解中小企业融资困境提供对策。

Small and medium-sized enterprises(SMEs) play an important role in the national economy of China, however, SMEs encounter financing difficulties for a long time, and it is necessary to explore new financing channels. In recent years, rapid development of private equity funds can provide a new approach for SMEs financing. The project focuses on private equity financing of family SMEs. Based on the background of institutional environment and the changing trend of family structure in China, the project uses empirical analysis of quantitative analysis, case studies and corporate history analysis to solve the following three key issues: (1) study the impact mechanism from family governance on private equity financing availability; (2) analyze the effect from private equity financing to family governance structure and family governance performance, and build the case base; (3) explore the boundary conditions that how social capital play a role in private equity financing of family SMEs. .The project has two significances. (1) It helps to enrich and develop the financing theory and social capital theory, and it can integrate the academic debate based on the reality of our country.(2) It can provide guidance for SMEs to introduce private equity financing, provide advice for private equity investment companies to select and enter the SMEs, and provide countermeasures for government departments to delevop private equity funds to alleviate SMEs financing difficulties.