This charging and discharging control device is a charging and discharging control device of a charging and discharging system provided with a first electricity storage device capable of effecting charging and discharging with a load, and a second electricity storage device which is capable of effecting charging and discharging with a load, and which has different characteristics from the first electricity storage device, wherein the charging and discharging control device is provided with: a charging rate acquiring unit which acquires a charging rate of the second electricity storage device;an allocation ratio setting unit which calculates, on the basis of the charging rate, an electric power allocation ratio based on the charging rate with respect to the first electricity storage device; and a command value generating unit which, on the basis of the allocation ratio based on the charging rate, generates an electric power command value for charging and discharging with respect to thefirst electricity storage device.