The invention provides a driving mechanism for a landing light, which includes a motor, a brake, a planetary reducer, a front fixed end cover, a first bearing, a front transmission hollow shaft, a second bearing, a harmonic reducer wave generator, and a harmonic reducer wave generator. Steel wheel, harmonic reducer flexible wheel, rear drive hollow shaft, third bearing, structural frame, rear fixed end cover, lampshade, lamp holder, connecting rod and connecting corner block. In the present invention, the harmonic reducer, planetary reducer, etc. are placed inside the driving mechanism of the landing light, so that the driving mechanism of the landing light has a simple structure, a small number of parts, small volume, compact structure and light weight; The reduction ratio is large, the bearing capacity is high, the transmission efficiency is high, the operation is stable, the gear gap is small, and the transmission precision is high. Under the action of long-term load, the gear is not easy to wear, and the landing light will not shake.