Improving the anti-decoy jamming ability of infrared-guided missiles is an important research topic for ensuring combat effectiveness. This paper first introduces the principle and process of the infrared seeker response to a decoy. Subsequently, it describes the course of their confrontation and anti-confrontation between infrared-guided missiles and decoys and extracts the anti-decoy jamming technical approach of infrared-guided missiles. Finally, a typical anti-decoy jamming strategy for an infrared-guided missile was analyzed and summarized.