A control device, comprising: a clutch control unit configured to output torque signals for controlling torques to be applied to clutches (40A,40B;Cp,Cn) provided respectively on two paths for transmitting torque from an engine; and a shift actuator control unit configured to control a rotation position of a shift actuator so as to move movable gears (3i,4i,5h,6h;Gp1,Gn1) in a transmission mechanism (30A,30B) which comprises odd-speed movable gears, odd-speed fixed gears, even-speed movable gears, and even-speed fixed gears and which is configured to connect to each of the clutches (40A,40B;Cp,Cn), wherein the shift actuator control unit outputs a target position signal that corresponds to a target rotation position of the shift actuator so as to control engagement or disengagement of a dog portion of each of the movable gears (3i,4i,5h,6h;Gp1,Gn1) and a dog portion of each of the fixed gears (1h,2h,3h,5i,6i;Gp2,Gn2) in the transmission mechanism (30A,30B), wherein when shifting a gear to another speed, the shift actuator control unit outputs the target position signal so as to shift the rotation position of the shift actuator to a gear shift position at which a gear shift operation is performed by the transmission mechanism (30A,30B), and characterized in that the clutch control unit outputs the torque signals so as to connect one of the clutches (40A,40B;Cp,Cn) that transmits power to, among the movable gears (3i,4i,5h,6h;Gp1,Gn1) and the fixed gears (1h,2h,3h,5i,6i;Gp2,Gn2), a movable gear or a fixed gear having the dog portion to be disengaged, and then the shift actuator control unit outputs the target position signal so as to return the rotation position of the shift actuator to a neutral position. a clutch control unit configured to output torque signals for controlling torques to be applied to clutches (40A,40B;Cp,Cn) provided respectively on two paths for transmitting torque from an engine; and a shift actuator control unit configured to control a rotation position of a shift actuator so as to move movable gears (3i,4i,5h,6h;Gp1,Gn1) in a transmission mechanism (30A,30B) which comprises odd-speed movable gears, odd-speed fixed gears, even-speed movable gears, and even-speed fixed gears and which is configured to connect to each of the clutches (40A,40B;Cp,Cn), wherein the shift actuator control unit outputs a target position signal that corresponds to a target rotation position of the shift actuator so as to control engagement or disengagement of a dog portion of each of the movable gears (3i,4i,5h,6h;Gp1,Gn1) and a dog portion of each of the fixed gears (1h,2h,3h,5i,6i;Gp2,Gn2) in the transmission mechanism (30A,30B), wherein when shifting a gear to another speed, the shift actuator control unit outputs the target position signal so as to shift the rotation position of the shift actuator to a gear shift position at which a gear shift operation is performed by the transmission mechanism (30A,30B), and characterized in that the clutch control unit outputs the torque signals so as to connect one of the clutches (40A,40B;Cp,Cn) that transmits power to, among the movable gears (3i,4i,5h,6h;Gp1,Gn1) and the fixed gears (1h,2h,3h,5i,6i;Gp2,Gn2), a movable gear or a fixed gear having the dog portion to be disengaged, and then the shift actuator control unit outputs the target position signal so as to return the rotation position of the shift actuator to a neutral position.