Digital technology is accelerating the financial revolution. New financial products，services and business models constructed with advanced technology are called digital financial services. This paper firstly introduces the current situation of the development of digital financial services. Then we focus on summarizing the practical explorations and outstanding cases of applying digital technology in the fields of small-micro finance，rural finance，supply chain finance and green finance. Furthermore，we try to analyze the problems and challenges that digital financial services are faced with，such as the lack of business mode，incompatibility of organization and human resources，compliance risk of new technologies application，and lack of accurate services for the real economy. At last，we look forward to the development trends of digital financial services from the perspectives of digital-driven and intelligent reconstruction，steady and safe development，wisdom for the people and bottleneck breakthrough，green development and support for carbon neutrality target.