A lighting device comprising: a base substrate; a plurality of LED light sources disposed in a center area of the base substrate in a first direction; a pair of first printed circuit boards in a bar type disposed on the base substrate, mounting the LED light sources on a surface thereof; a reflective film disposed on the base substrate; a reflection module having a slope surface corresponding to a light radiating surface of the LED light sources such that all slope surfaces are included having a structure in which an angle at which the radiated light and the slope surface of the reflection module meet is not a right angle; and a resin layer stacked in a structure which covers the LED light sources, the pair of first printed circuit boards, the reflective film, and the reflection module, wherein the reflection module has a three-dimensional shape with a base surface, and the slope surface formed with a gradient in one side or both sides of the base surface, wherein the reflection module is configured such that an angle between the light radiated perpendicularly from the light radiating surface of the LED light sources and the slope surface forms an acute angle or an obtuse angle, wherein the slope surface is coated with a reflection layer, wherein the resin layer is contacted with the pair of first printed circuit boards, the plurality of LED light sources, the reflective film, and the reflection layer on the slope surface; wherein the reflection layer comprises: a first portion directly contacted with the reflective film, and a second portion directly contacted with the resin layer; wherein the reflection module further comprises a plurality of reflective patterns formed on the reflection layer, and wherein the reflective patterns are disposed so that a density of the reflective patterns increases as a distance from LED light source increases. a base substrate; a plurality of LED light sources disposed in a center area of the base substrate in a first direction; a pair of first printed circuit boards in a bar type disposed on the base substrate, mounting the LED light sources on a surface thereof; a reflective film disposed on the base substrate; a reflection module having a slope surface corresponding to a light radiating surface of the LED light sources such that all slope surfaces are included having a structure in which an angle at which the radiated light and the slope surface of the reflection module meet is not a right angle; and a resin layer stacked in a structure which covers the LED light sources, the pair of first printed circuit boards, the reflective film, and the reflection module, wherein the reflection module has a three-dimensional shape with a base surface, and the slope surface formed with a gradient in one side or both sides of the base surface, wherein the reflection module is configured such that an angle between the light radiated perpendicularly from the light radiating surface of the LED light sources and the slope surface forms an acute angle or an obtuse angle, wherein the slope surface is coated with a reflection layer, wherein the resin layer is contacted with the pair of first printed circuit boards, the plurality of LED light sources, the reflective film, and the reflection layer on the slope surface; wherein the reflection layer comprises: a first portion directly contacted with the reflective film, and a second portion directly contacted with the resin layer; wherein the reflection module further comprises a plurality of reflective patterns formed on the reflection layer, and wherein the reflective patterns are disposed so that a density of the reflective patterns increases as a distance from LED light source increases. a first portion directly contacted with the reflective film, and a second portion directly contacted with the resin layer; wherein the reflection module further comprises a plurality of reflective patterns formed on the reflection layer, and wherein the reflective patterns are disposed so that a density of the reflective patterns increases as a distance from LED light source increases.