In recent years, Development of HAST, highly accelerated stress test technology provides a powerful tool for the assessment of product quality and reliability, rapid exposure to product design and manufacturing defects, improve its reliability.At present, this technology has been widely used in communications, electronics, computers, medical, energy, aviation, and aerospace And military and other fields, which involving network equipment, microwave equipment, optical fiber, telemetry equipment, video processing equipment, commercial avionics, hand-held computers,