Photonic crystal is a kind of artificial structure crystal formed by a plurality of dielectric materials with different dielectric constants arranged in a certain spatial period, whose photonic band gap has high reflectivity to electromagnetic waves. The photonic crystals can alter the radiation characteristics of targets. The study of infrared stealth materials based on photonic crystals is one of the research hot spots of the current infrared stealth technologies. The structures and characteristics of photonic crystals are introduced in detail and the current application status of photonic crystals in infrared stealth is systematically reviewed. The outlook for the study of novel infrared photonic crystal materials is also discussed in order to provide some solutions for the needs of wide-band stealth, multi-band compatibility, and band gap adjustment of photonic crystal infrared stealth materials.