Aiming at the disadvantages of traditional aerial target threat assessment methods, such as over-reliance on expert experience, large amount of prior knowledge needed, and unreasonable target attribute weights, an aerial target threat assessment method based on combined weighting method and TOPSIS method is proposed.For aerial threat targets, in order to comprehensively consider the subjective and objective weights of target attributes, a combined weighting method based on game theory is introduced to determine the integrated weights of target attributes, and then the TOPSIS method is used for aerial targets to conduct threat assessment. Finally, through the case simulation,the feasibility and effectiveness of the method are verified.