In modern war, the detection and precise guidance systems have been developed from single band to composite band, which put forward higher requirements on camouflage material. Photonic crystal as a kind of artificial crystal function material, its band gap characteristics are used to realize camouflage at mid-infrared band. The photonic crystal is designed and fabricated by applying electron beam evaporation and thin film deposition technology, which is stealth at 3~5 μm and compatible with laser waveband at 0.93 μm, 1.06 μm and 10.6 μm. It is very important for aircraft nozzle position stealth. Spectrum analysis shows that the specifications meet application requirements.