A light emitting device, includes: a package equipped with a lead having an upper surface and a lower surface, and a metal board and a plating layer, the upper surface including a mounting portion, the metal board whose main component is copper, the plating layer including a first plating layer and a second plating layer which are provided on the lower surface of the metal board, the first plating layer containing silver and nickel and being formed on the edge of the metal board, and the second plating layer containing no nickel and being formed on at least part of a region below the mounting portion, a molded resin that holds the lead so that the lower face of the lead is exposed to the outside; a light emitting element mounted on the mounting portion; and a sealing member that seals the light emitting element.