In the use of surface-type infrared decoys,the reasonable and effective jamming strategy is the key to jamming the infrared guided missile successfully.Aiming at this problem,the jamming strategy of the surface-type infrared decoys against the infrared guided missile is obtained by combining theoretical analysis and simulation.First,taking infrared imaging guided missile as an example,the simulation model of infrared guided missile is introduced in this paper.Then,the attack process is divided into pre-lock and post-lock.At last,taking the hit rate as the evaluation index,the optimal jamming strategy under two stages is obtained,including the optimal release time of decoys,release interval and the maneuvering action that should be taken by the carrier aircraft.