A charge-transporting varnish according to the present invention includes a charge-transporting substance, a dopant substance, and an organic solvent, wherein the charge-transporting substance contains at least one selected from N,N′-di(1-naphthyl)benzidine, N,N′-di(2-naphthyl)benzidine, and N-(1-naphthyl)-N′-(2-naphthyl)benzidine. The charge-transporting varnish allows formation of a charge-transporting thin film with which an organic EL element excellent in durability can be achieved when the charge-transporting thin film is applied to a hole injection layer.