A semiconductor laser element includes a substrate; a semiconductor layer formed on a front surface of the substrate; a first electrode formed on a back surface of the substrate; a second electrode formed on a front surface of the semiconductor layer; and at least one mark configured to allow reading of predetermined information, the at least one mark being formed in at least one of (i) a position on the surface on which the first electrode is formed, spaced apart from the first electrode and (ii) a position on the surface on which the second electrode is formed, spaced apart from the second electrode. The at least one mark is made of a metal material and has a thickness smaller than a thickness of the electrode that is formed on the surface on which the at least one mark is formed.