信息应用在“一带一路”沿线国家交流合作中发挥了普惠性的基础作用，也为共同推进信息基础设施建设提供了新思路。本文首先对中国参与沿线国家信息基础设施建设遇到的困难、信息应用服务企业在沿线国家的兴起与发展状况进行了分析。研究表明沿线国家信息基础设施建设受复杂的地缘政治、意识形态和国家安全影响推进缓慢；信息应用服务领域处于市场充分竞争的新兴领域，契合人民社会生活和政府治理需求，合作空间巨大。以基础型信息应用激活沿线国家信息基础设施建设，是实现互联互通的有效路径。

Information application plays an inclusive and fundamental role in exchanges and cooperation between countries along the Belt and Road, and offers a new perspective for the joint development of information infrastructure. This paper first analyzes the difficulties that China met when participating in the information infrastructure construction in countries along the route and depicts the emergence and development of information application service enterprises in countries along the route. Research shows that information infrastructure construction in countries along the route is slow, due to complex geopolitical, ideological, and national security factors. Information application is an emerging field with adequate market competition. It accords with the needs for social life and government governance, so the cooperation space in this field is huge. Using basic information application to activate the information infrastructure construction of countries along the route is an effective way to achieve connectivity.