Abstract: With the development of science and technology, infrared stealth technology has been widely used in new weapons and equipments, and it has become an important performance and significant feature of the modern weapon equipment. The birth of the infrared sensors for missile seeker applications becomes a major threat for various types of weapons and equipments, especially for infrared detectors. The threats to weapons were analyzed; infrared stealth performance of the various types of weapons and equipment and development of the infrared stealth was summarized; the sources of infrared radiation, control technology measure of IR and development tendency were briefly analyzed for fixed wing aircraft as the key, but also for helicopters, surface ships and ground weapon equipments. The test results prove that research and application of the infrared stealth technology are important to all kinds of weapons and equipments.