In order to simulate landmark long wave infrared scene image, according to the variation law of earth surface temperature with time, combining the parameters, such as weather condition, background material, thermal feature parameters, thermal situation and so on, the factors which affect the variation process of earth surface temperature, such as sun radiation, sky long wave radiation, air temperature, earth surface heat conduction, are analyzed. The equation based on the thermal balance theory and heat conduction process is founded, then the temperature variation about some usual earth surfaces in a day is figured out, and the temperature is proposed to be simultaneously used in the corresponding infrared texture image derived from the same visual texture image. By considering the computation model including self radiation, reflected radiation of the scenery, the related earth surface infrared scene with infrared texture detail is created. The results indicate that the method can simulate infrared scene with reality and is valid to simulate landmark long wave infrared feature.