A control method of controlling a plurality of moving objects that convey a plurality of cargos includes, by a computer, acquiring a residual battery capacity of the plurality of moving objects, determining a target residual battery capacity of the plurality of moving objects in a next unit of time, allocating a conveyance unit to each of the moving objects based on a residual battery capacity and a target residual battery capacity of each of the moving objects and a weight of each of the cargos, and transmitting, to each of the moving objects, control information instructing a conveyance work of the conveyance unit allocated to each of the moving objects.