Knowledge graph construction method and system

The invention discloses a knowledge graph construction method and system, and relates to the technical field of knowledge graphs. Comprising the following steps: S1, acquiring graph relation data: acquiring data by using a downloading template and a batch uploading mode, and storing the data into a database; s2, information extraction: extracting data in the database to obtain a plurality of data sets; s3, knowledge fusion: combining a plurality of data sets into one data set to form a knowledge graph; and S4, visualizing the atlas: performing automatic knowledge acquisition by utilizing a 3D visualization technology. Word segmentation and part-of-speech tagging do not need manual tagging, and a large amount of manpower and financial resources are saved; development is carried out in an automatic mode, knowledge graph construction can be rapidly carried out, and excessive manpower does not need to be consumed; the dynamic development rule of the knowledge field is disclosed, practical and valuable reference i