In library applications, radio frequency indentification (RFID) technology, sensors, and wireless transmission networks have been applied to various services such as self-service checkout and return systems, electronic reader cards, intelligent bookshelves, intelligent monitoring of library premises, augmented reality (AR) interactive picture books, physical corridors, and seat reservations; in regional library alliances, real crossregional and cross-system alliance cooperation through IoT technology is also becoming increasingly important. Continuous information resource sharing is an important means to maximize the effectiveness of library information resources and meet the information needs of various users. The development of IoT technology opens new ideas and methods for information resource sharing in regional library alliances, effectively expanding the scope of information resource sharing and improving the efficiency of information resource sharing. This paper briefly presents the relationship, architecture, and key technologies of IoT technology and the definition, characteristics, and types of regional library consortium and content. Analysis of the characteristics and principles of regional library consortium information resource sharing is in the context of IoT and the corresponding studies on information sharing between regional library consortia at home and abroad. We also propose strategies to establish a specialized agency for information resource sharing, establish a sound investment mechanism for information resource sharing, ensure the security of information resource sharing of the regional library consortium, and increase the publicity and training capacity of information resource sharing of the regional library consortium.