Journal of Digital Information Management Hongzhao Li, Qingsong Zhu, Fumin Yang 14 1 2016 http://dline.info/fpaper/jdim/v14i1/v14i1_7.pdf Power dispatching automation system is an automatic application for monitoring and controlling electronic power network dispatching in electric power industry operation and a complex, huge and important engineering concerning national economy and the people's livelihood. With the improved requirement of national economy on power quality and development of computer and information technology, power dispatching automation tends to be stronger in monitoring and controlling electronic power network. Focusing on power dispatching automation system in data management of power plant substation, this study discussed over how to process data information of power plant substation and improve preciseness of data during acquisition, transmission and controlling under the condition of increased access volume in power plant substation, which is beneficial to promote safe, reliable and economic operation of electronic power network and economic benefit of power plant.