According to the requirement of laser identification between friend or foe system, chosing H4 as the material of high refractive index and SiO2 as the material of low refractive index, the film system is designed and optimized with the help of Macleod and TFCalc software. Adopting electron beam vaccum deposition method with the aid of ion assistant deposition technology as well as using orthogonal matrix tests to adjust and optimize technological parameters of the materials, using two sides of the substrate to broaden the long and short wavelenth reflection bands respectively, the monitoring problem of thicker stack on one side has been solved and filter film to meet the demand has been deposited. The reflectances at 532, 632, 905, 1064 and 1550 nm wavelengths are less than 0.2%, and it makes the transmittance over 95% at 808 nm wavelength. The laser induced damage thresholds (LIDTs) of the filter at 532 nm and 1064 nm are higher. Moreover, the filter can endure the test of bad environment, meeting the using requrement of the identification between friend or foe system.