LED is a novel solid state lighting system, the reliability of whose driving power supply has attracted a wide attraction. As the reliability enhancement test, highly accelerated life test can excited the failure modes of the electronic system in a short period. This paper proposed a high accelerated life test with the LED switching power supply. Firstly, it analysed the basic structure and principle of the switching power supply. Then it determined the failure criterion. The paper also designed the random vibration step stress test plan and found the weak link reliability of the electronic system, which provided the basis for the reliability design.