To provide a roof mirror measuring apparatus capable of shortening a tact time taken to obtain an intersection point height and a roof angle of a roof mirror, without the need to retract any lens from a light path.

The roof mirror measuring apparatus which includes a laser pointer 34 for emitting a measurement light beam toward a roof surface of the roof mirror and measures the intersection point height and the roof angle by receiving a laser beam reflected by the roof surface, includes: a beam splitter 40 for splitting the laser beam reflected by the roof surface into two portions; a condenser lens 50 for condensing one of split measurement light beams which are split by the beam splitter 40; a CCD camera 60 for receiving the split measurement light beam condensed by the condenser lens 50; and a CCD camera 70 for receiving the other split laser beam. The intersection point height and the roof angle of the roof mirror are obtained based on a light reception position of a light receiving surface of the CCD camera 60 and a light reception position of a light receiving surface of the CCD camera 70.