Disclosed herein is a vertical light emitting type backlight module, for irradiating white light to the rear side of a liquid crystal display in the perpendicular direction. The vertical light emitting type backlight module comprises a) one or more LED array modules, each comprising a substrate having conductive patterns printed on upper and lower surfaces of the substrate, respectively, a plurality of LED devices mounted on the upper and lower surfaces of the substrate, respectively, for emitting light toward the front of respective surfaces of the substrate with the LED devices mounted thereon, and a plurality of lenses formed to surround the LED devices, respectively, for directing the light emitted from the LED devices in a direction perpendicular to the LED while being within a predetermined angle from an axis parallel to a plane of the backlight module, the substrate being mounted perpendicular to the plane of the backlight module such that the light emitted from the LED devices is emitted in a direction approximately parallel to the plane of the backlight module, and b) a reflection plate for each of the LED array modules for reflecting the light spread in the horizontal direction to change path of the light to the perpendicular direction.