The invention discloses a vehicle LED lighting lamp with waterproof and dustproof functions, which belongs to the technical field of vehicle lamps. The left side of the installation box is overlapped with the right side of the glass shield, and the surface of the installation box is fixedly connected with the inner wall of the annular protective steel mesh. The vehicle LED lighting with waterproof and dustproof function is provided with the active fan blade, the driven fan blade, the driving shaft, the driven shaft, the sealing cylinder, the sliding rod, the tooth slot, the gear, the transmission wheel and the cooling return hole. As the gas continues to enter the inside of the heat-conducting fixing cover, the gas inside the heat-conducting fixing cover is at high pressure, and the inside of the installation box is under negative pressure, so that the gas cools down and re-enters the inside of the installation box through the cooling return hole, and the airflow passes through the cooling The return hole is directly blown on the right side of the LED light board assembly to take away its heat. This way, the internal heat can be stably dissipated, and the lights can be cooled steadily during driving.