Interior mirror display system

Provided is an interior mirror system, including a display module (200) that outputs images captured by a first camera (111) and a second camera (112), so that the driver can secure his or her field of vision for the side rear as well as the rear of a vehicle using only one interior mirror (room mirror 300) disposed in an inner part of the vehicle without confirming a side mirror, thereby effectively reducing moving lines in the driver's field of vision.