Abstract：Application of Artificial Intelligence in Libraries Artificial intelligenceAIhas shown great promise for applications with large breakthroughs in pattern recognitionknowledge mappingcomputer visionand human-machine interactionIn this paperfirstlythe key technical features of AI in library application are studiedand its application in library stack buildingstack management and information retrieval service is analyzedthen the existing problems of artificial intelligence in library application are analyzedand finally the corresponding application service countermeasures are put forwardwhich can provide reference for related researchers and staffCollection classification Retrieval and Indexing This study mentioned the application of AI in the librarywhich involves mode recognitionknowledge mappingcomputer vision and human-computer interactionAmong themmode recognitioninvolves identification and classification of datawhich may involve automatic classification and marking of files or other resources in the application of the library