An actuator control device for controlling first and second actuators comprising first and second pistons (7, 6) respectively connected to points of application of forces on a coaxial synchronous link, the points of application being located on opposite sides of a center of rotation of the coaxial synchronous link, the actuator control device comprising: a first servo valve for driving ejection and retraction of the first piston; a second servo valve for driving ejection and retraction of the second piston independently of the first servo valve; force sensors for measuring forces generated in the first and second actuators, respectively; characterized in that the actuator control device also comprises: displacement sensors (F_B, F_A) for detecting displacement positions of the first and second pistons (7, 6), respectively; and a control unit (10b, 10a) for controlling the first and second servo valves (82, 81), the control unit configured to: detect the displacement position of the first piston, control the first servo valve by feedback control so that a position of the first piston matches a target position command value, measure both of forces generated in the first and second actuators, correct a target position command value for the second piston in accordance with an amount of imbalance between the forces, and control the second servo valve in accordance with a difference between the corrected command value and a feedback value of the displacement position of the second piston so that a position of the second piston matches the corrected command value. a first servo valve for driving ejection and retraction of the first piston; a second servo valve for driving ejection and retraction of the second piston independently of the first servo valve; force sensors for measuring forces generated in the first and second actuators, respectively; characterized in that the actuator control device also comprises: displacement sensors (F_B, F_A) for detecting displacement positions of the first and second pistons (7, 6), respectively; and a control unit (10b, 10a) for controlling the first and second servo valves (82, 81), the control unit configured to: detect the displacement position of the first piston, control the first servo valve by feedback control so that a position of the first piston matches a target position command value, measure both of forces generated in the first and second actuators, correct a target position command value for the second piston in accordance with an amount of imbalance between the forces, and control the second servo valve in accordance with a difference between the corrected command value and a feedback value of the displacement position of the second piston so that a position of the second piston matches the corrected command value. displacement sensors (F_B, F_A) for detecting displacement positions of the first and second pistons (7, 6), respectively; and a control unit (10b, 10a) for controlling the first and second servo valves (82, 81), the control unit configured to: detect the displacement position of the first piston, control the first servo valve by feedback control so that a position of the first piston matches a target position command value, measure both of forces generated in the first and second actuators, correct a target position command value for the second piston in accordance with an amount of imbalance between the forces, and control the second servo valve in accordance with a difference between the corrected command value and a feedback value of the displacement position of the second piston so that a position of the second piston matches the corrected command value. detect the displacement position of the first piston, control the first servo valve by feedback control so that a position of the first piston matches a target position command value, measure both of forces generated in the first and second actuators, correct a target position command value for the second piston in accordance with an amount of imbalance between the forces, and control the second servo valve in accordance with a difference between the corrected command value and a feedback value of the displacement position of the second piston so that a position of the second piston matches the corrected command value.