Financial service industry is not only one of the core industries of CBD，but also the focus of domestic reform and opening up. The development of CBD financial service trade plays an important role in the process of China’s financial system reform and opening up. Starting from the current situation of the development of China’s financial service trade，this paper analyzes the characteristics of the development of China’s financial service trade from the aspects such as market share，trade growth rate，industrial status，export market distribution as well as international competitiveness，and discusses the role of CBD in promoting the development of China’s financial service trade and financial opening process by means of typical CBD development cases. On this basis，it reveals some of the problems that CBD is facing in the development of financial service trade，such as the disadvantage of backwardness，the lack of policy space，the single business model and low-level agglomeration，the fragmentation and the unfavorable external environment，while the countermeasures and suggestions are given from the perspective of Dual-Circulation Strategy，which includes deepening the reform of the financial system，further expanding the financial opening-up，improving the construction of financial infrastructure，promoting the innovation of financial science and technology in the region，and exploring the financial supervision system under the open conditions.