Abstract: An automatic rearview mirror for vehicles which is capable of constricting the rearview mirror when it is not used, and capable of drawing out the rearview mirror only when it is required. The rearview mirror comprising an external housing, an internal housing, a protecting glass plate, a mirror plate, packing and scraper, a motor, and two servomotors for adjusting the angle of mirror plate. The external housing is fixed to the interior of the front quarter vent or on the bonnet, and the internal housing is drawn out of the external housing and inserted therein by switching operations performed by the driver. The protecting glass plate is cleaned every time the internal housing is drawn out of and constricted into the external housing by the scraper attached to the opening edge of the external housing so that the mirror can be easily cleaned.