This book is one of the preliminary results of the National Social Science Fund project "Research on the Internal Logic of and Practical Path to the Construction of a Legal System of Financial Stability". It carries out theoretical analysis and special interpretation of the legislative background, legislative process, legislative purpose, overall thinking, underlying logic, basic orientation, institutional system, and external relations of the Private Sector Promotion Law, as well as related hot issues such as fair competition, investment and financing promotion, scientific and technological innovation, standardized business operation, service guarantee, rights protection, and legal responsibility, and provides a compilation of typical cases of high-quality development of the private sector and main laws and regulations in the field of the private sector. This book holds great theoretical and practical significance for achieving a comprehensive understanding of the Private Sector Promotion Law, ensuring its accurate and thorough implementation, and promoting the high-quality development of the private sector with the rule of law.