The rapid development of smart grid in China has put forward higher requirements to the power grid dispatch, and it is necessary to develop adaptable smart grid dispatch support system. Based on the existing technical achievements of smart grid dispatch, a power grid operation track oriented automatic smart dispatch system is proposed to accurately grasp the trend of grid operation status. The concept and characterization method of grid operation track are introduced. The overall objective of automatic smart dispatch is presented. And the framework of automatic smart dispatch system is proposed, mainly including awareness & forecasting, analysis & assessment, decision support and automatic control. Moreover, the key technologies of automatic smart dispatch are pointed out.