An optical information recording medium 10 includes a first substrate 11, a second substrate 12 disposed in parallel with the first substrate 11, and an information layer 20 disposed between the first substrate 11 and the second substrate 12, and the information layer 20 includes a recording layer 23 and inorganic layers (lower side interface layer 22 and upper side interface layer 24) adjacent to the recording layer 23. The recording layer 23 is changed between at least two different states, which are discernable optically, by irradiation with a laser beam 14 incident from the first substrate 11 side. The inorganic layer contains a nitride of Si.sub.xGe.sub.1-x (where 0.3.ltoreq.x.ltoreq.0.9) as a main component. The present invention provides an optical information recording medium capable of recording/reproducing information with satisfactory reliability even in recording/reproducing with a light beam having a short wavelength or in recording/reproducing with respect to a plurality of information layers.