An electric storage device protection apparatus includes switches arranged between an electric device and an electric storage device and connected in parallel to each other, a rectifier component connected in series to one of the switches between a pair of common connection points of the switches, and a controller. The controller is configured to make the switch connected to the rectifier component to be in the open state when determining that a voltage of the electric storage device is within a reference range, and make the switch that is connected to the rectifier component to be in the closed state and make another one of the switches to be in the open state when determining that a voltage of the electric storage device becomes outside the reference range due to a current flowing in a reverse direction of the rectifier component.