To provide a rear-view mirror capable of mounting a direct left mirror by a simple measure in emergency when confirmation of a dead angle cannot be performed by a camera.

On a lower surface part of a rear-view mirror body 3, an opening part 12 fitted with the direct left mirror 20 in emergency when a left side of the vehicle getting the dead angle cannot be confirmed by a driver by failure or the like of the camera 11 is formed, and a lid part 14 for closing the opening part 12 is fitted. Further, in emergency when the left side of the vehicle becoming the dead angle cannot be confirmed by the driver by failure or the like of the camera 11, the lid part 14 is removed and the direct left mirror 20 is fitted to the opening part 12. Thereby, the direct left mirror 20 can be mounted to the rear-view mirror body 3. Therefore, the driver can confirm the left side of the vehicle becoming the dead angle even at emergency by failure or the like of the camera 11.