An electronic mirror device includes: a display that is mounted on an installation position of a rear-view mirror in an interior of a vehicle; and a controller that controls the display. The display includes: a body case having an opening on a side of a driver seat of the vehicle; an image display unit that is mounted to the body case and displays the camera image; and a half mirror disposed at a side of the driver seat of the image display unit. The controller identifies an object moving in a direction toward the vehicle in the camera image, and displays a camera image in which a size of the identified object in a display image on the image display unit is magnified or reduced to a size of the object reflected in the half mirror viewed from the driver seat, on the image display unit.