全球化的进程正在加速，数字经济的发展也有了显著的提升，服务的贸易性也在逐步增强，已经转变为国家财富的重要来源之一。鉴于信息通讯技术对于经济发展的重要性被广泛认可且其重要地位日益凸显，世界各地的国家及地区均视之为重点投资领域。同样地，那些拥有先进的信息通讯技术的地区的服务业出口能力亦相当强大。基于此背景，本文分析探究信息通讯技术对服务贸易竞争力的影响，并采用理论分析和实证分析的方法。首先，本文分析了世界各国目前信息通讯技术以及服务贸易竞争力的发展情况。然后，本文从理论分析中深入探究信息通信技术如何影响一个国家服务贸易竞争力。信息通信技术可以通过去中介化来降低搜索成本、促进信息交流交换和约束机会主义来减少服务贸易的交易成本，从而增强国际贸易竞争力。此外，信息通信技术还可以从其他途径提升一个国家的服务贸易竞争力，包括提高技术水平、促进创新以及加强全球服务价值链的联系。因此，本文从理论分析得到信息通讯技术可以通过交易成本机制、新生产要素机制、创新机制以及联结效应机制来提升服务贸易竞争力水平。实证分析中，本文运用钻石模型选取变量构建了固定效应回归模型，并利用2005-2021年间的187个国家的面板数据进行分析，同时对发达国家和不发达国家进行样本回归，并对主回归模型的结果进行了稳健性检验。最终，根据回归结果，提出针对发达国家和发展中国家在提高信息通讯技术发展水平方面不同的政策建议，以提升服务贸易总体和各类服务贸易竞争力。在此基础上，就我国的具体情况也提出相应的政策建议。

The process of globalization is accelerating, and the development of the digital economy has also significantly improved. The trade in services is gradually increasing, and it has become one of the important sources of national wealth. Given the widely recognized and increasingly prominent importance of information and communication technology for economic development, countries and regions around the world consider it a key investment area. Similarly, the export capabilities of service industries in regions with advanced information and communication technologies are also quite strong. Based on this background, this article analyzes and explores the impact of information and communication technology on the competitiveness of service trade, and adopts theoretical and empirical analysis methods. Firstly, this article analyzes the current development of information and communication technology and service trade competitiveness in various countries around the world. Then, this article delves into how information and communication technology affects a country's competitiveness in service trade through theoretical analysis. Information and communication technology can reduce search costs, promote information exchange, and constrain opportunism through disintermediation to reduce transaction costs in service trade, thereby enhancing international trade competitiveness. In addition, information and communication technology can also enhance a country's competitiveness in service trade through other means, including improving technological levels, promoting innovation, and strengthening connections in the global service value chain. Therefore, this article theoretically analyzes that information and communication technology can enhance the competitiveness of service trade through transaction cost mechanisms, new production factor mechanisms, innovation mechanisms, and linkage effect mechanisms. In empirical analysis, this article used the diamond model to select variables and constructed a fixed effects regression model. Panel data from 187 countries from 2005 to 2021 were used for analysis. Sample regression was also conducted on developed and underdeveloped countries, and the robustness of the main regression model results was tested. Finally, based on the regression results, policy recommendations are proposed for developed and developing countries to improve their level of information and communication technology development, in order to enhance the overall competitiveness of service trade and various types of service trade. On this basis, corresponding policy recommendations are also proposed based on the specific situation in China.