The invention provides an electric vehicle real-time control method based on schedulability. Based on a concept, the invention provides a method for performing real-time distribution on charging/discharging power of the electric vehicle in a micro power grid. The electric vehicle real-time control method comprises the steps of establishing an EV schedulability analysis model through integrally considering EV historical charging behaviors and current networking information; determining scheduling priority of the EV schedulability according to four evaluating indexes of EV battery loss degree, charging/discharging emergency degree, reversal charging capability and creditability, and defining a generalized power distribution principle according to a power compensation requirement in each sampling period. For sufficiently representing rationality of the scheduling priority, an SA threshold is set in each sampling period. On the condition that the scheduling priority is higher than the preset threshold, a system performs power distribution on the scheduling priority. The electric vehicle real-time control method has advantages realizing real-time on optimized operation of the electric vehicle, improving load characteristic of the system, and reducing total operation cost of the micro power grid.