Abstract:The application of big data is more and more widely, it is the general trend to apply big data thinking to management. Power big data refers to a collection of massive business data collected by various data collection channels, which has the characteristics of large amount of data, strong timeliness and high use value. Power grid enterprises such as State Grid and South Network have already smelted the value of big data and taken many measures to make the necessary strategic deployment in time. Currently, the grassroots power supply business unit enlightened person and the commission is starting data management attempts, is still in its infancy, facing many problems need to be resolved. Several data management and analysis cases listed in this article are the "stars of fire" in the big data management of grass-roots power supply enterprises. They put forward some suggestions that grass-roots power supply enterprises can take the initiative in the face of the big data trend, Management trends occupy the initiative, and look forward to big data management in the grass-roots power supply enterprise applications scene.