The utility model provides a novel LED daytime running lamp and front fog lamp combined device of an automobile, which comprises a lamp shell, lamp glass, a daytime running lamp and a front fog lamp,a lamp cavity is arranged in the lamp shell, and the lamp glass is arranged at the front end of the lamp cavity; the daytime driving lamp comprises an LED circuit board and LED lamp beads, and the LEDcircuit board is detachably fixed to the upper portion of the lamp cavity; the LED lamp beads are arranged on the LED circuit board; the front fog lamp is arranged on the lower portion of the lamp cavity, and an H8 bulb is adopted as a light source of the front fog lamp. According to the daytime driving lamp, the LED lamp beads are used as a light source; the front fog lamp adopts an H8 bulb as alight source and is arranged in the same lamp shell in a combined mode, so that the visual effect and the safety performance of the automobile lamp can be enhanced, the space size of the lamp is reduced, the appearance attractiveness and the energy-saving practicability of the automobile lamp are improved, and the manufacturing cost of the lamp can be reduced.