The invention provides a
crop variety management-oriented
knowledge graph construction method and device. The method comprises the steps of constructing a field ontology of
crop variety management according to a subject term dictionary of
crop variety management; according to the domain ontology, obtaining corresponding crop variety management data, and performing
knowledge extraction on the variety management data; expressing the extracted knowledge by adopting a triple, and establishing a
composite index; expanding the triple through knowledge reasoning; and according to the user interest characteristics, the
user input behavior characteristics and the browsing behavior characteristics, searching the triple
data set based on the
composite index, and generating different
knowledge graph data display interfaces for each user. According to the method, the manual participation degree in the
knowledge graph construction process is reduced, the automatic construction level is improved, the problems of low efficiency, low
automation degree, poor expansibility and the like in the crop variety management knowledge graph construction process are solved, and a visual and convenient
knowledge organization, management and display mode is provided.