An organic electroluminescence device comprise an organic electroluminescence element including a pair of electrodes and an organic layer disposed between the pair of electrodes and a sealing resin layer covering a surface of the organic electroluminescence element. The organic layer includes an emitting layer. The sealing resin layer includes a thermoplastic resin composite. The thermoplastic resin composite contains a matrix resin component constituted by at least one resin having a molecular weight of 5000 or more. A content of an organic component having a molecular weight of less than 500 in the thermoplastic resin composite is less than 6 ppm.