In the 2022 “Government Work Report”，it is proposed to promote the development of digital economy and the digital transformation of industries. Computing power is the driving force for the development of the digital economy，and the cornerstone for the smooth digital transformation of the industry，the full release and utilization of data elements，and the innovation and prosperity of industrial applications. To develop the digital economy，we should give priority to the construction of computing power. The development of high-quality digital economy needs the support of advanced and efficient computing power system. This paper expounds two kinds of classical computing power systems：computing power system with data center as the carrier and edge computing near the data generation end，and discusses the value and scenarios of quantum technology in the field of computing. It introduces the development and practice of typical technologies in the computing power system of data center，including cloud computing，heterogeneous computing，liquid cooling solution，and their effects and values on the processing capacity，intelligence，energy and space conservation，resource utilization and other aspects of the financial service system. Besides，it presents the significance of edge computing and its effect on improving the efficiency of cloud-edge computing system and serving specific financial service scenarios. The paper also introduces the value of quantum technology on breaking through the above classical computing power constraints and algorithm bottlenecks，improving the processing capacity and computing efficiency of financial computing power system，as well as exploring the applicable financial scenarios and practices.