A wind power generation control device, for use with a wind power generator group composed of a plurality of wind power generators and a storage battery system composed of a plurality of batteries, characterized in that the wind power generation control device comprises: a charge-discharge power command operation unit configured to perform control over charge-discharge power charged and discharged by the storage battery system so that system generated power, obtained by adding wind generated power generated by the wind power generator group and the charge-discharge power, falls within an allowable range of a planned generation power value set in advance; an average value operation unit configured to calculate an average value of the wind generated power generated by the wind power generator group during a first control period before present time; a targeted SOC (State of Charge) range operation unit configured to calculate a targeted battery charging rate range of the storage battery system; a planned generation power value operation unit (33, 33a) configured to calculate a planned generation power value for a second control period which is set later than the present time, based on the average value of the wind generated power calculated by the average value operation unit; and a predicted generation power operation unit that is connected to a wind prediction device configured to predict wind conditions in the second control period, and configured to calculate predicted wind generation power in the second control period, based on the predicted wind conditions in the second control period provided from the wind prediction device, wherein the planned generation power value operation unit (33, 33a) is configured to compare the average value of the wind generated power calculated by the average value operation unit with the predicted wind generation power calculated by the predicted generation power operation unit, and, on the condition that the average value of the wind generated power is greater than the predicted wind generation power, to correct the average value of the wind generated power by replacing the average value of the wind generated power with the predicted wind generation power, and to set the planned generation power value to: the average value of the wind generated power, if a current battery charging rate of the storage battery system is in the range of upper and lower limit values of the targeted battery charging rate range; a value obtained by multiplying a positive constant greater than 1 by the average value of the wind generated power, if the current battery charging rate of the storage battery system is above the upper limit value of the targeted battery charging rate range; and a value obtained by multiplying a positive constant less than 1 by the average value of the wind generated power, if the current battery charging rate of the storage battery system is below the lower limit value of the targeted battery charging rate range. a charge-discharge power command operation unit configured to perform control over charge-discharge power charged and discharged by the storage battery system so that system generated power, obtained by adding wind generated power generated by the wind power generator group and the charge-discharge power, falls within an allowable range of a planned generation power value set in advance; an average value operation unit configured to calculate an average value of the wind generated power generated by the wind power generator group during a first control period before present time; a targeted SOC (State of Charge) range operation unit configured to calculate a targeted battery charging rate range of the storage battery system; a planned generation power value operation unit (33, 33a) configured to calculate a planned generation power value for a second control period which is set later than the present time, based on the average value of the wind generated power calculated by the average value operation unit; and a predicted generation power operation unit that is connected to a wind prediction device configured to predict wind conditions in the second control period, and configured to calculate predicted wind generation power in the second control period, based on the predicted wind conditions in the second control period provided from the wind prediction device, the average value of the wind generated power, if a current battery charging rate of the storage battery system is in the range of upper and lower limit values of the targeted battery charging rate range; a value obtained by multiplying a positive constant greater than 1 by the average value of the wind generated power, if the current battery charging rate of the storage battery system is above the upper limit value of the targeted battery charging rate range; and a value obtained by multiplying a positive constant less than 1 by the average value of the wind generated power, if the current battery charging rate of the storage battery system is below the lower limit value of the targeted battery charging rate range.