A control device whose control target is a vehicle drive device having an automatic transmission provided in a power transmission path that connects a rotating electrical machine to a wheel, wherein the control device is configured such that when the control device performs upshifting, the control device performs, during operation of the upshifting, torque increase control in which output torque (Tmg) from the rotating electrical machine is increased so as to compensate for a reduction in wheel transmission torque (Tw) caused by a reduction in gear ratio, the upshifting being shifting of a shift speed formed by the automatic transmission from a first shift speed to a second shift speed having a smaller gear ratio than the first shift speed, and the wheel transmission torque (Tw) being torque transmitted from the rotating electrical machine to the wheel through the automatic transmission, the control device being characterized in that the upshifting is performed in a state in which an operating point of the rotating electrical machine for outputting requirement-based torque at wheel-based rotational speed falls within an operable range of the rotating electrical machine both before and after shifting the shift speed by the upshifting, and in which before shifting the shift speed, output torque (Tmg) from the rotating electrical machine is less than or equal to determination torque, the wheel-based rotational speed being rotational speed (Nmg) of the rotating electrical machine based on rotational speed of the wheel, the requirement-based torque being output torque (Tmg) from the rotating electrical machine based on the required wheel transmission torque (Tw), and the determination torque being torque obtained by subtracting an amount of increased torque (ΔTmg) resulting from the torque increase control from maximum torque (Tmax) that can be outputted from the rotating electrical machine at the wheel-based rotational speed, and the upshifting is basically not performed in a state in which at least one of a first condition and a second condition is not satisfied, the first condition being that an operating point of the rotating electrical machine for outputting the requirement-based torque at the wheel-based rotational speed falls within an operable range of the rotating electrical machine both before and after shifting the shift speed by the upshifting, and the second condition being that before shifting the shift speed, output torque (Tmg) from the rotating electrical machine is less than or equal to the determination torque. wherein the control device is configured such that when the control device performs upshifting, the control device performs, during operation of the upshifting, torque increase control in which output torque (Tmg) from the rotating electrical machine is increased so as to compensate for a reduction in wheel transmission torque (Tw) caused by a reduction in gear ratio, the upshifting being shifting of a shift speed formed by the automatic transmission from a first shift speed to a second shift speed having a smaller gear ratio than the first shift speed, and the wheel transmission torque (Tw) being torque transmitted from the rotating electrical machine to the wheel through the automatic transmission, the control device being characterized in that the upshifting is performed in a state in which an operating point of the rotating electrical machine for outputting requirement-based torque at wheel-based rotational speed falls within an operable range of the rotating electrical machine both before and after shifting the shift speed by the upshifting, and in which before shifting the shift speed, output torque (Tmg) from the rotating electrical machine is less than or equal to determination torque, the wheel-based rotational speed being rotational speed (Nmg) of the rotating electrical machine based on rotational speed of the wheel, the requirement-based torque being output torque (Tmg) from the rotating electrical machine based on the required wheel transmission torque (Tw), and the determination torque being torque obtained by subtracting an amount of increased torque (ΔTmg) resulting from the torque increase control from maximum torque (Tmax) that can be outputted from the rotating electrical machine at the wheel-based rotational speed, and the upshifting is basically not performed in a state in which at least one of a first condition and a second condition is not satisfied, the first condition being that an operating point of the rotating electrical machine for outputting the requirement-based torque at the wheel-based rotational speed falls within an operable range of the rotating electrical machine both before and after shifting the shift speed by the upshifting, and the second condition being that before shifting the shift speed, output torque (Tmg) from the rotating electrical machine is less than or equal to the determination torque.