The rural revitalization strategy is important to establish a sustainable development mechanism in rural areas after comprehensive poverty eradication. Serving the rural revitalization strategy is determined by the characteristics and social functions of libraries. "Smart service" has gradually become an inevitable choice for libraries to build a smart society and achieve sustainable development, and it is a new development concept for the future. On the basis of analyzing the basic logic of library smart services in the context of rural revitalization strategy, this paper first studies the requirements of rural revitalization strategy for library services in industrial revitalization, talent revitalization, ecological revitalization and cultural revitalization; Then the service modes of library smart services in the context of rural revitalization strategy are condensed, including collaborative linkage, service integration and openness across borders; Third, to summarizes the challenges to realize these models; Finally, this paper summarizes the challenges faced in realizing these models and paths: investment and budget, human resources and technology, intellectual property infringement risks, and management system obstacles.