Rearview mirror with built-in camera

A camera built-in rearview mirror is presented which includes an opening (8) made on an under portion (2b) of a mirror housing (2), a camera (20) built in the mirror housing (2) having a lens (23) facing the opening (8), and a transparent cover (10) for closing the opening (8) that the lens (23) of the camera (20) faces, the camera (20) being mounted in the mirror housing (2) attachably thereto or detachably therefrom, whereby the rearview mirror allows easier assembling and disassembling of the camera (20) in the mirror housing (2) and positioning of the camera (20) with the opening, whereby it can protect against dirt sticking to the lens and the occurrence of wind noise and whereby, when the mirror housing suffers damage, the rearview mirror allows reuse of the camera, thereby contributing to a cost reduction in mirror housing replacement.