本文通过沪深A股公司的实证分析,探讨了顾客忠诚度对供应链关系持续性的影响。明确了影响忠诚度的不同因素的权重占比,其中忠诚度指标体系的构建采用AHP的方法。并且探究忠诚度对企业合作关系持续性的影响,此过程利用灰色关联度法进行评价,并采用MCE软件进行计算。结果表明:顾客忠诚度与供应链关系的持续性有显著的正相关,而供应链关系的交互和依赖程度则会增强顾客忠诚度对供应链关系的持续性的作用。以至于在如今竞争激烈、经济全球化的背景下,提高客户忠诚度是保障供应链合作关系的重要途径。This paper explores the influence of customer loyalty on the sustainability of supply chain relationships through empirical analysis of companies listed on the Shanghai and Shenzhen A-shares market. It clarifies the weight proportions of different factors affecting loyalty and constructs a loyalty index system using the Analytic Hierarchy Process (AHP) method. Furthermore, it investigates the impact of loyalty on the sustainability of corporate cooperative relationships, a process evaluated using the Grey Relational Analysis (GRA) method and calculated with MCE software. The results indicate that customer loyalty has a significant positive correlation with the sustainability of supply chain relationships, and the interaction and dependency levels of supply chain relationships can enhance the role of customer loyalty in the sustainability of these relationships. Therefore, in the context of intense competition and economic globalization, improving customer loyalty is an important way to ensure the cooperation of supply chain relationships.