Images of different polarization state characteristics and intensities are collected for different camouflaged targets based on a four-channel polarized mid-wave infrared camera, according to the polarization equation, the polarization degree and polarization angle information of different targets are calculated, and the obvious polarization characteristics of the target are obtained by using a variety of image fusion algorithms. By comparing with the infrared intensity imaging of the target itself, it can be seen that the infrared polarization imaging can effectively identify the target using ordinary infrared camouflage through different image fusion algorithms. The research is very significant to the identification of camouflaged targets using infrared polarization.