中文摘要：

本文使用扎根理论，通过文本资料收集与整理、访谈获取研究资料，运用NVivo10软件对资料进行编码．最终得出PPP项目履约绩效的影响因素分为政府方、社会资本方、公私双方合作3个主范畴。通过分析这3个主范畴对履约绩效的影响，得出以下管理启示：①政府应通过职能转换以及行政法治化不断完善政府治理：②社会资本应建立现代化企业制度，注重科研创新，爱惜企业声誉；③政府应树立契约精神，以实现与社会资本的平等市场交易，并通过构建社会资本信誉平台扬优抑劣。

英文摘要：

The influencing factors of contract-enforcing performance are explored based on grounded theory, the research materials which are obtained through document collection arrangement and interviews are coded by using the software of NVivo 10. The research results show that three core categories of the influencing factors of contract-enforcing performance are governments, social capital and public-private cooperation. Furthermore, management suggestions are proposed as follows. ① Governments governance should be im- proved constantly by changing governments functions and administrative rule of law. ② Modernized enterprise system should be estab- lished, great attention should be paid to research innovation and reputation by social capital. ③ Contract spirit should be set up by gov- ernments to realize equal market transaction with social capital, and reputation platforms of social capital should be established to com- mend the superior and curb the inferior.