An organic EL device that efficiently extracts light includes an organic EL element formed by laminating a first electrode layer, functional layer, and second electrode layer on a substrate and a sealing member sealing the organic EL element. The organic EL device has a first electrode communicating part electrically connected to the first electrode layer at one side of the substrate and a second electrode communicating part electrically connected to the second electrode layer at the other side of the substrate. The organic EL device has first cross grooves crossing the organic EL element from the second electrode layer located at the one side to the second electrode layer that is located at the other side. The first cross groove is formed by removing the first electrode layer, functional layer, and second electrode layer. The sealing member and the substrate are connected outside of the first cross grooves.