Abstract: Low light level night vision goggle has been benefit to pilot for carrying out terrain reconnaissance, making up air flight, and air-to-ground attacking at night. Image intensifier assembly can intensify the low light image projected by object at night to bright one fitted to be observed by human. According to the spectral response of image intensifier, NVIS compatible characteristic and spectrum matching performance of super-second and the third generation low light level image intensifier assembly was analyzed. Operational performance of different night vision goggles was derived by calculating formula. It is shown that the third generation low light level image intensifier assembly has better NVIS compatible characteristic than super-second generation by means of good spectrum matching performance and high quantum efficiency, which is benefit to reconstruct the NVIS compatible cockpit lighting. Meanwhile, because of higher signal to noise ratio, night vision system equipped the third generation low light level image intensifier assembly can discover farther object than the second generation.