A sensor protection apparatus includes a first sensor cover movable between a sensor covering position and a first cover waiting position; a second sensor cover movable between the sensor covering position and a second cover waiting position, wherein each of the first and second sensor covers is located at the sensor covering position for protecting the surface of the sensor from being contaminated by foreign matter; and an actuator configured to move the first and second sensor covers such that the first sensor cover and the second sensor cover are alternately located at the sensor covering positions thereof.