A window glass heating device for a vehicle is provided with: a window heater; a window heater control unit that controls operation of the window heater based on an operation on an operation switch; a camera heater; and a camera heater control unit that controls supply of power to the camera heater to defog the camera-imaging window area. The camera heater control unit is configured to acquire window heater operation information which is operation information on operation of the window heater and to limit supply of power to the camera heater when it is estimated that the camera heater is potentially overheated by heat applied from the window heater to the camera heater based on the window heater operation information.