近年来，城市的金融职能被日益重视，城市的对外金融服务能力是衡量金融中心城市等级的关键指标，利用社会网络研究方法测度城市之间的金融联系成为研究热点。本文通过首次公开募股（IPO）过程中上市企业与为其服务的高级生产者服务业（APS）企业之间的关系来构建城市联系，并用首发募集资金作为权重，分阶段分析中国金融中心城市网络的格局和演变。研究发现：(1)中国金融中心城市网络符合我国经济地理的总体格局，城市网络的密度呈上升趋势，城市之间的联系日渐紧密，但不均衡程度也在提升。(2)中国金融中心城市网络的中心城市始终为北京、上海和深圳，三者构成中国金融中心城市网络的核心节点。北京的地位最为突出，尽管上海APS企业总服务次数少，但加权后影响力比深圳更大。(3)将首发募集资金额加权计入连接值后，中国金融中心城市网络中联系最紧密的城市对是北京-上海，在城市网络中地位最高、影响力最强。(4)定量回归分析发现，以IPO过程中城市APS企业对外服务值衡量的城市对外金融服务能力与城市金融业的活力及竞争力、城市的文化资本存量、城市总体经济发展水平以及城市的服务业比重和发展水平显著正相关。

In recent years, more and more attention has been paid to the research direction of analyzing the influence of cities by constructing urban networks to depict the spatial pattern of inter-city connections within the region. The status of financial industry has gradually risen, and the development of financial industry plays an increasingly important role in the comprehensive development of cities. Therefore, from the perspective of financial industry development, It is of great significance to understand the financial connection pattern among cities, analyze the financial center cities of China and explore the factors affecting the financial service ability of cities by constructing the network of Chinese financial center cities. Due to APS enterprises serve for the enterprises listed on the a-share market's initial public offering (IPO) play an important role in the process, and an important impact on financial sector development and significance, in this article, through the process of IPO of listed companies and for its services APS enterprise, the relationship between the use of weighted starting to raise money for relations, analysis of China's financial center city network in stages. The results show that :(1) the overall distribution of the financial center city network in China is roughly similar to the pattern of population distribution and economic distribution. The overall network density shows an upward trend, and the connections between cities become more and more close over time, but the distribution becomes more and more unbalanced. (2) The central cities of China's financial center city network are Always Beijing, Shanghai and Shenzhen, which constitute the main structure of China's financial center city network. Beijing is particularly prominent, with Shanghai having fewer services but more weighted influence than Shenzhen. (3) After weighting the IPO amount into the connection value, Beijing-Shanghai is the most closely connected urban dual structure in China's financial center city network, which has the highest status and the strongest influence in the urban network constructed in this paper. (4) The vitality and competitiveness of the city's financial industry, the city's cultural capital stock, the overall economic development level of the city and the status and development level of the city's service industry in the city have a positive impact on the position of the city in high-end producer services and financial industry.