Abstract: Since the jamming strategy of traditional infrared imaging anti-ship missile, such as hot flame bomb and smog, which could not be good deal with the threat of new infrared imaging anti-ship missile, a strategy of applying water curtain to different zones of ship surface to counter the infrared imaging anti-ship missile was designed, and the jamming effect of water curtain on infrared imaging seeker was studied by modeling and simulation. The simulation model of ship infrared radiation which comprehensively considered the sea-sky background was established, and combined with the typical image recognition algorithm, the different water curtain application strategies were developed. The simulation model was used to study the success rate of infrared imaging seeker for target recognition under a certain distance and different strategies. According to the recognition results and algorithm principle, the water curtain application strategy was optimized. The optimized partition water curtain application strategy could reduce the recognition success rate of the seeker to target by about 60%. Finally, the cooling effect of water curtain was verified by the cooling shrinkage ratio test device built in the real scenes.