The purpose of aeromagnetic compensation is to eliminate magnetic interference introduced by the aircraft plat.form. For high-precision aeromagnetic exploration, the quality of aeromagnetic compensation directly restricts perfor.mance of exploration. According to the implementation steps of aeromagnetic compensation, in this paper, the modeling ofaircraft magnetic interference was built, the method of solving the model parameters and the calibration flight plan wereput forward. Further, in order to effectively control quality of compensation flight, the quantitative indicators were used toevaluate the effects of aeromagnetic compensation, compensation effect of judging the merits. Finally, based on MFC soft.ware development platform, the coefficient solver and performance assessment software for aeromagnetic compensation wasdeveloped.