The utility model belongs to the technical field of the pipeline illumination, a pipeline lighting device is disclosed, pipeline lighting device is provided with waterproof pier base, and there is thelight -absorpting shade waterproof pier base's upper end through light -absorpting shade set screw fixed mounting, waterproof pier base with the junction cover of light -absorpting shade is equippedwith the light -absorpting shade sealing washer, waterproof pier base's lower extreme has the light pipe through the fixed cartridge of light pipe set screw, the banded LED lamp of fixed surface in the light pipe lower extreme. The utility model discloses solved the problem of indoor lighting luminance when the sunlight gradient is bigger effectively, gathered light more fully and be used for indoor lighting, the diffuser design is fresnel lens array, makes the sunlight sunlight behind the diffuser that gets into from the different angles of all directions shine evenly indoor, waterproof pierbase plays the effect of fixed light -absorpting shade and light pipe respectively, plays sealing water -proofing effect simultaneously.