The utility model relates to a LED light guide daytime running lamp seals up the assembly by LED light source, LED drive plate, light guide, lamp glass, lamp body and forms, LED light guide daytime running lamp still includes LED power cord, light guide installing support, light guide mount, light guide decorative board, self -tapping screw, the LED light source is installed on the LED drive plate, install the light guide on the light guide installing support, the light guide installing support is connected with the light guide mount, light guide mount and light guide decorative board, the light guide, the light guide installing support is connected, the luminous intensity of the light belt that LED light guide structural design formed accords with the value that rules ECE R87 required, the lamp body bonds with automobile -used glue with the assembly of lamp glass in the lamps and lanterns, have sealedly, waterproof characteristic, the effect of LED lamps and lanterns makes the vehicle that goes in weather such as daytime or rain and fog discerned better by other users of road, and the safety of vehicle run is enhanced, reduce the emergence of traffic accident.