To solve the problem that target threat assessment is mostly subjective and the sequencing logic is rigid in traditional air defense operations, a method for threat measurement and sequencing of air raid targets fusing entropy method and AHP is put forward. The attribute factors affecting the threat degree of target to air defense position are analyzed combined with air combat situation, meanwhile the corresponding threat membership functions are proposed. Through using weighted summation, multiplicative synthesis and geometric average, the weight of entropy method and AHP are fused twice to measure and sequence the threat degree of each target. The simulation result illustrates that the fusion threat weight takes both weighting characteristics of entropy method and AHP so that the measurement process is more reasonable, simultaneously the sequencing result is closer to the real battlefield situation and have high credibility.