A control device for an internal combustion engine including a supercharger and a waste gate valve, the supercharger including a compressor an electric motor, and a turbine, the turbine being provided in an exhaust passage of the internal combustion engine, the waste gate valve being provided in a bypass passage that bypasses the turbine, the control device includes circuitry. The circuitry is configured to drive the electric motor in a high-load operation state in which the load of the internal combustion engine is determined to be equal to or larger than a first reference load and the temperature of the exhaust gas is determined to be expected to be higher than a reference temperature. The circuitry is configured to increase an opening degree of the waste gate valve in the high-load operation state.