To meet the requirements of the electric power information system, this paper studies the data acquisition from industrial systems(DAIS) Node-Item data model referenced by the newest IEC 61970-404 high speed data acquisition(HSDA) specification, and gives a design of DAIS data access(DA) based electric power data exchange server supporting the specification. The vital decisions of design, core data structures and method to realize key mechanism are described. According to the design, the server is implemented by means of encapsulating an electric power information system in use, and converting the format of exclusive data of the system through mapping. The test result of this server implementation indicates that the design is reasonable and feasible.