Provided is a lighting device, including: a light source module comprising at least one light source on a printed circuit board, and a resin layer in which the light source is embedded; a light reflection member which is adjacent to at least any one of one side surface and the other side surface of the resin layer; and an optical plate comprising a side wall which is closely adhered to the light reflection member, and an upper surface which covers an upper part of the light source module, wherein a haze of the optical plate is less than 30%.