Data mining and knowledge graph construction method and system, electronic equipment and medium

The invention discloses a data mining and knowledge graph construction method and system, electronic equipment and a medium, and belongs to the technical field of natural language processing, and the method specifically comprises the following steps: collecting related data in the field of internal examination of electric power engineering by using a data mining technology, preprocessing the collected related data in the field of internal examination of electric power engineering, and constructing a knowledge graph; identifying and extracting entities and entity relationship information in the preprocessed related data of the electric power engineering internal examination field, extracting feature words in the preprocessed related data of the electric power engineering internal examination field by utilizing a natural language model, and classifying the feature words through a feature machine learning model; according to the method, the knowledge graph of the electric power engineering internal examination f