This article aims to lay the foundation for further potential application work by completing the prototype design of the Hainan Russian language service platform for comprehensive smart tourism in Hainan Province, and explore the factors that affect tourists’ continued use of the platform. Firstly, based on the expected confirmation model, a theoretical model is constructed with the characteristics of the Hainan Smart Tourism Network Russian Service Platform and tourist perception as latent variables, and hypotheses are proposed. Secondly, data will be collected through a questionnaire survey, and the hypothesis will be validated using the Analytic Hierarchy Process to test the mediating role of perceived usefulness and satisfaction. Finally, the entropy weight analytic hierarchy process is used to study the antecedent configurations that trigger tourists’ intention to continue using, and to analyze the impact of different factors on their intention to continue using. The results of the hierarchical regression analysis show that the information quality, media richness, usability, and perceived interest of the Hainan Russian service platform for smart tourism have a positive impact on expected confirmation and perceived usefulness; Expectation confirmation and perceived usefulness have a positive impact on satisfaction; Perceived usefulness and satisfaction have a positive impact on the willingness to continue using. The results of the entropy weight analytic hierarchy process show that there are three patterns of triggering sustained use intention, with high media richness and high expected confirmation appearing multiple times as core conditions. The study verified the applicability of the expectation confirmation model in the design of the Hainan Russian language service platform for smart tourism, indicating that improving information quality, media richness, usability, and perceived interest can enhance tourists’ expectation confirmation and perceived usefulness, thereby improving satisfaction and sustained use intention. The research results provide theoretical basis and practical guidance for the design and implementation of a Hainan Russian language service platform for smart tourism.
