The data warehouse（DW） is an effective platform for information management， analysis and application. In view of the incapability of current DWs of supporting either the storage and process of real-time data or the short-term tactical decision-making， a novel enhanced DW platform for the dispatching automation system that is made up of the enterprise application integration（EAI） node， real-time data processing center（RTDPC）， active data warehouse and system management tools is presented. Based on the self-developed dispatching automation system SCUT2008 used in the power grid， the DW is successfully implemented. It has been proved by application and test that the platform proposed is enhanced in the data extracting and transforming capacity， the response performance of real-time data， as well as the ability of capturing an accident.