According to the development trend of power dispatch automation system, the paper analyzes the deficiencies and problems of current network dispatching automation system to city. The deficiencies of the existing network are summarized combined with the background technology and standards of smart grid dispatching data network in the network. Finally, according to the actual situation of Xuchang City, the construction plan of Xuchang area dispatching data network is described in detail. The scheme can be used as the reference of dispatching data network planning, automation network application and intelligent scheduling and other aspects of the work.