In this paper,based on the 8～12μm band images measured by airborne infrared thermal imager,the atmospheric correction between aircraft and satellite platform is carried out by two methods:The "air ground satellite method" and the "air satellite method",according to the theory of the influence of atmospheric absorption and thermal radiation on infrared imaging simulation,combined with MODTRAN software. Through the comparison of simulation data and simulation images,it is concluded that the simulation images obtained by the two atmospheric correction methods are better；the "air satellite method" is convenient for real time operation with small computation amount,and the "air ground satellite method" is closer to the real situation with strong usability.