Disclosed is a light emitting device package. The light emitting device package includes a package body including a cavity formed therein with first and second via holes, a first electrode extending from one side of the cavity to one side of a rear surface of the package body through the first via hole, a second electrode extending from an opposite side of the cavity to an opposite side of the rear surface of the package body through the second via hole, a light emitting device connected with the first and second electrodes, an insulating layer insulating the first and second electrodes from the package body, and a reflective layer disposed on the insulating layer having a structure in which first and second media having different refractive indexes are alternately stacked on each other.