An organic electroluminescence light emitting device comprising: a transparent substrate; a transparent electrode film formed on the substrate; a positive electrode contact portion that is electrically connected to the transparent electrode film as a part of the transparent electrode film; a first insulating layer formed on the transparent electrode film such that a light emitting portion is opened; an auxiliary electrode formed on the transparent electrode film; a second insulating layer formed on the auxiliary electrode; an organic light emitting layer formed on the transparent electrode film and on the first and second insulating layers; a negative electrode layer formed on the organic light emitting layer; a negative electrode contact portion that is in contact with at least part of the negative electrode layer and that is electrically connected to the negative electrode layer; and a protective layer that, in order to separate and electrically insulate the transparent electrode film and the positive electrode contact portion from the negative electrode contact portion, is formed therebetween, wherein the positive electrode contact portion and the negative electrode contact portion are electrically insulated by the first insulating layer or the protective layer; and the transparent electrode film is formed without a gap across an area on the substrate including areas where the positive electrode contact portion, the first and second insulating layers, the organic light emitting layer, the negative electrode layer, the negative electrode contact portion and the protective layer are formed; characterised in that the positive electrode contact portion is provided on opposing side edge portions of the transparent electrode film, and in that the auxiliary electrode is formed of a metal material in a gridlike fashion and contacts the positive electrode contact portion on the opposing edge portions of the transparent electrode film. a transparent substrate; a transparent electrode film formed on the substrate; a positive electrode contact portion that is electrically connected to the transparent electrode film as a part of the transparent electrode film; a first insulating layer formed on the transparent electrode film such that a light emitting portion is opened; an auxiliary electrode formed on the transparent electrode film; a second insulating layer formed on the auxiliary electrode; an organic light emitting layer formed on the transparent electrode film and on the first and second insulating layers; a negative electrode layer formed on the organic light emitting layer; a negative electrode contact portion that is in contact with at least part of the negative electrode layer and that is electrically connected to the negative electrode layer; and a protective layer that, in order to separate and electrically insulate the transparent electrode film and the positive electrode contact portion from the negative electrode contact portion, is formed therebetween, wherein the positive electrode contact portion and the negative electrode contact portion are electrically insulated by the first insulating layer or the protective layer; and the transparent electrode film is formed without a gap across an area on the substrate including areas where the positive electrode contact portion, the first and second insulating layers, the organic light emitting layer, the negative electrode layer, the negative electrode contact portion and the protective layer are formed; characterised in that the positive electrode contact portion is provided on opposing side edge portions of the transparent electrode film, and in that the auxiliary electrode is formed of a metal material in a gridlike fashion and contacts the positive electrode contact portion on the opposing edge portions of the transparent electrode film.