With the increasing of massive-data in Power Grid services, which used the centralized database or unified database of large-scale Power Grid storage technology is difficult to meet the demand of each service and management. Firstly, the paper focuses on analysis of data type and characteristics in the Power Grid services, integrated the State Grid current structure of old equipment and communication networks, then based on that, we propose a distributed storage solutions that applied to Power Grid Services, and also design the data access control; finally, we carry on an initial validation and comparative analysis.