A turbocharger includes a plurality of nozzle vanes provided on an outer circumferential side of a turbine wheel, a variable nozzle vane mechanism adjusting a flow of an exhaust gas with the nozzle vanes, and an actuator driving the nozzle vane mechanism. A control device for the turbocharger continues an abutting control that causes a movable member of the variable nozzle vane mechanism to abut against a stopper that regulates the movable range of the nozzle vanes as long as the engine is stopped while the vehicle is running.