2019 is a year in which China's digital financial inclusion shifts from rapid development to high-quality development. In the past year, many new formats have emerged, but some of the original formats have faced some development sticking points. The 2016 G20 Advanced Principles for Digital Financial Inclusion define digital financial inclusion as "all actions that promote financial inclusion through digital financial services." It can be seen that digital inclusive finance represents the integration of "digital finance" and "inclusive finance", and financial institutions promote the development of inclusive finance through digital financial services. From 2017 to 2018, China's digital inclusive finance flourished in the wave of financial innovation, showing a rapid change. By 2019, the wave of innovation in China's digital inclusive finance has retreated, and the development dilemma of the industry as a whole has become prominent. Only by fully summarizing and reflecting on the above development dilemma can China's digital inclusive finance usher in better development. In the past year's development, a series of hot issues have emerged in China's digital inclusive finance, such as extensive innovation in rural digital inclusive finance, frequent data leakage and data sharing problems, and development opportunities for joint loan business with the support of regulators... The hot events of digital financial inclusion are closely related to people's lives and deserve everyone's attention. These hot issues also reflect the mutual influence and interaction of innovation, risk and regulation of digital inclusive finance in China. Behind the hot events and hot issues not only implicit the latest development of digital financial inclusion, but also reflect the crux of the overall development of the industry. The great value behind hot issues requires us to think, analyze and explore. This book focuses on the frontiers and hot spots in the development of digital inclusive finance, and reviews some hot issues of China's digital inclusive finance from 2019 to 2020, aiming to summarize the past, look forward to the future, and provide relevant suggestions for the overall development of the industry. The review of this book includes the latest progress of digital inclusive finance in China, such as the coopetition relationship between BigTech and traditional financial institutions, rural digital inclusive financial innovation, and Internet insurance. At the same time, this book also sorts out the development difficulties faced by some formats of digital inclusive finance, such as small and micro credit of commercial banks, rural digital inclusive finance, and online mutual aid platforms, and gives several countermeasures and suggestions to alleviate the dilemma. In the process of sorting out hot issues, this book combines academic theory with industry practice, draws on international development experience on the basis of China's national conditions, and conducts in-depth analysis and comprehensive review of the development status of various formats of digital inclusive finance. This book also pays special attention to the dilemmas and challenges faced by some formats of digital inclusive finance in China, strives to think about the future development direction of digital inclusive finance, gives some countermeasures and suggestions to promote the better development of these formats, and explores the enlightenment of digital inclusive finance in the development of the financial industry, financial business innovation, financial services real economy and rural revitalization. We hope that the comprehensive review and thinking results of this book can bring reference value to government decision-making, provide some development ideas for the industry, make certain contributions to the academic community, and ultimately promote the development of digital financial inclusion with the modest efforts of the team. We will continue to focus on the field of digital financial inclusion, conduct in-depth academic exploration on the basis of the research results of this book, and promote the overall development of the industry through solid theoretical research. We believe that with the leadership of the government and the joint efforts of the industry and academia, China's digital financial inclusion development will usher in a better tomorrow. Zeng Yan, June 12, 2020（AI翻译）