DeepSeek presents new opportunities for the intelligent development of libraries. Exploring the application pathways of DeepSeek in libraries is of great significance for advancing AI applications in the field. Based on an analysis of DeepSeek’s breakthrough features, this study examines its application landscape and challenges, ultimately summarizing the "Library + DeepSeek" application pathway. The findings reveal that this pathway is structured around four core layers: strategic planning, system construction, operational management, and evaluation. Libraries must establish a clear understanding of the technology and formulate precise implementation plans, complete the development of technical systems, service content, and staff teams, ensure effective management of resources, technical infrastructure, and data, and conduct real-time evaluations from both construction and utility perspectives.