In order to promote the reform and optimization of library reading promotion, and explore the impact of generative artificial intelligence on library reading promotion, this paper analyzes the relationship between generative AI and library reading promotion by logical deduction, and summarizes the service transformation of library reading promotion. The study finds that generative AI can realize the intelligent promotion of library collection resources through intelligent promotion planning, intelligent promotion marketing, and intelligent guidance and consultation; promote the scenario-based of reading activities through the virtualization of reader identity, the diversification of reading resources, and the immersion of reading field; promote the accurate and personalized development of readers through the accurate recommendation of reading information, the in-depth interpretation of reading content, and the one-to-one accompanying reading.