A semiconductor light emitting device package includes: a ceramic substrate having first and second electrode structures; a light emitting diode chip mounted on the ceramic substrate, electrically connected to the first and second electrode structures, and configured to emit ultraviolet light; metal patterns disposed on the ceramic substrate to be spaced apart from the first and second electrode structures; an adhesive pattern disposed on the ceramic substrate between the adjacent metal patterns, the adhesive pattern having both side surfaces in contact with one side surface of the metal patterns and an upper surface positioned on a level below that of a lower surface of the light emitting diode chip; and a protector attached to the ceramic substrate by the adhesive pattern, the protector providing a cavity surrounding the light emitting diode chip.