A new method for constructing infrared models of warships was proposed on the basis of traditional methods for establishing infrared models.The new method is mainly aimed at analyzing geometric relations and rebuilding models.By this method, the models can be constructed rapidly and efficiently.The method was developed further and applied in the simulation of scenes for infrared confrontation and the deduction of battle situation.Based on which, simulation was carried out on warships infrared stealthy effectiveness, route planning and evasive maneuvering, and analysis was made on the infrared simulation effectiveness.The result showed that the model constructing method has high accuracy and fine effectiveness.