Abstract: A method of fabricating a nitrogen discharge lamp includes: a first evacuation step for evacuating the gas in a glass tube, a first gas introduction step for introducing nitrogen gas into the glass tube that has undergone the first evacuation step, a preliminary discharge step for producing electric discharge in the glass tube that has undergone the first gas introduction step, a second evacuation step for evacuating the gas inside the glass tube that has undergone the preliminary discharge step, and a second gas introduction step for introducing at least nitrogen gas and a noble gas into the glass tube that has undergone the second gas introduction step.