Abstract:At present, the data in the intelligent charging pile network system has the typical characteristics of "big data", that is, the data source, the data type is rich, the data volume is huge and the growth is rapid, but the traditional data processing technology can not effectively deal with these data, the big data technology can well deal with this scene. big data technology plays a key role in the operation and maintenance of charging piles, the analysis of charging customers and the overall operation and dispatch of power grid enterprises. It is of great significance to establish a safe, reliable and efficient charging pile network. This paper discusses the application of large data technology in the intelligent charging pile network system, analyzes the relationship between the intelligent charging pile network system and the big data, expounds in detail the design idea of the overall structure of the big data processing platform of the intelligent charging pile network, and describes the key technologies used in this system. Finally, the application of big data technology in charge pile operation and maintenance, charge customer analysis, enterprise overall operation and dispatch is analyzed. Big data technology can promote the intelligent development of charging pile network, and provide a practical guarantee for the construction of safe, efficient and convenient charging pile network. The wide application of big data technology in the power industry will certainly bring about changes in the industry, and push the development of smart grid to a new stage.