Abstract: Target aircraft is regarded as the carrying platform of surface source infrared decoy, of which kinematic and radiation characteristics impact the development trend of infrared confrontation. Considering the economy of test cost, the algorithm was used to optimize simulation models of infrared decoy, and then the influence of flight parameters of target aircraft on jamming effectiveness of surface source infrared decoy was analyzed. Firstly, the target maneuver from database of maneuver was extracted, while the model of aircraft infrared radiation was established. Secondly, the optimization algorithm of missile tracking and anti-interference was introduced, and the solving procedures of combustion optimization algorithm in detail was analyzed. Finally, the flight parameters of target aircraft and the indicator of effectiveness evaluation were selected, based on which, the simulation results were compared with testing data to verify the reasonability of simulation result. It's concluded that the simulation results of jamming effectiveness of surface source infrared decoy match the testing data, satisfying the demand of jamming effectiveness evaluation.