To provide a discharge lamp which is suitable for its dark startability though a metal conductor is arranged on an outer periphery of an end where an electrode is prepared.

In the discharge lamp 1, the electrodes 20, 21 are arranged inside on at least one of the ends 12, 13 of a glass valve 10, and the metal conductors 30, 31 electrically connected with the electrodes 20, 21 are arranged on the outer periphery of the ends 12, 13. An emitter 40 is arranged at a position where electric field strength is high at a degree where an ion shock is induced in the glass valve 10 at the time of starting.