The invention discloses a scheduling method and device based on a microgrid. The method comprises the following steps of: constructing a battery operation model based on the electric quantity cost andthe electric quantity consumption of a battery in the microgrid; constructing a unit combination model of the microgrid according to the battery operation model; determining an operation scheme withthe minimum operation cost of the microgrid in a preset time period based on the unit combination model; and scheduling the microgrid according to the operation scheme. The method and the device solvethe technical problem that in the prior art, the microgrid is required to be analyzed on the basis of a large number of scenes, so that the calculation amount of microgrid scheduling is large.