Abstract: In order that an image photographed by a monitoring mechanism can be stable even in a case in which vibration of a vehicle is transmitted to a hosing, a mirror device for a vehicle comprising a housing, provided at a vehicle, which holds a mirror and covers a back surface side of the mirror, a photographing mechanism, provided within the housing, which has a lens and photographs a status in a direction in which the lens is oriented, a fixing member, fixed to one of the housing or the mirror, which fixes one of the lens or the vicinity of the lens of the photographing mechanism, is provided.