The invention discloses an electric power marketing knowledge base system based on an intelligent retrieval technology. The electric power marketing knowledge base system is based on a B/S structure as a whole structure and comprises a storage layer, which realizes the classification and storage of knowledge according to standards, and simultaneously comprises a backup storage of the knowledge base; a service layer used to connect storage layer and application layer, including data and data exchange, data quality and other functions and services; an application layer, which is used for displaying the system operation interface and providing relevant application functions for users. The system uses the distributed search engine technology Elasticsearch to realize the real-time retrieval ofbig data. This system puts the application layer on the Web side and the storage layer on the server side; on the basis of convenient operation, effective knowledge wealth summary of massive documentscan be carried out, an orderly document classification system is formed and users can perform convenient document management operation by using the system. The system adopts Elasticsearch to realizereal-time retrieval, and realizes the functions of extremely fast file dynamics, multi-platform file interconnection, intelligent full-text retrieval, customization of personalized rules, class windowoperation and so on.