Manufacturing enterprise attribute identification method and equipment based on NLP and knowledge graph

The invention relates to a manufacturing enterprise attribute identification method and device based on an NLP and a knowledge graph, and the method comprises the following steps: obtaining platform transaction data, splitting an entity table and a relation table from the platform transaction data, constructing a transaction knowledge graph, enabling one node of the transaction knowledge graph to represent one enterprise, and enabling the other node of the transaction knowledge graph to represent the other enterprise; each relation between the nodes represents one platform transaction; the platform transaction volume of the to-be-identified enterprise is calculated based on the transaction knowledge graph, value judgment is carried out on the platform transaction volume based on business rules, a first identification result is obtained, and the first identification result is 0 or 1; entity extraction is carried out on the enterprise name of the to-be-identified enterprise through a trained named entity identi