Infrared scene simulation of sea wave plays a very important role in battlefield situation visualization and research of infrared search and track systems.To improve infrared scene simulation effect of sea wave,sea wave surface was modeled by using gerstner wave,and wave surface parameters were computed by directional ocean wave spectrum based on PM and SWOP direction expanding equation.According to sea wave surface infrared radiation characteristics,infrared radiation effect was simulated,and high fidelity infrared scene simulation of sea wave was achieved.The simulation results show that this method has a high application value in some areas.