Abstract:Using intelligent technology to assist on-site maintenance and failure analysis of nuclear power plants is an important basis for enterprises to carry out refined management and high-quality development. It has become an industry consensus to analyze and utilize existing data. This paper studies the knowledge graph technology, analyzes the application mode of the equipment fault knowledge graph, and studies the construction process and application scenarios of the graph. This paper studies key links such as knowledge acquisition, entity recognition, relationship extraction, knowledge fusion, knowledge storage, and knowledge services, analyzes and proposes potential application scenarios and specific implementation paths of equipment failure knowledge graphs, and evaluates the difficulties in developing graph construction and application. Finally, the application direction and content of knowledge graph in nuclear power plant equipment management are discussed.