Nano　composite　method　was　used　to　prepare　the　radar　wave　absorbing　coatings.　Proportions　of　nano/micron　composite　particles　were　calculated.　Micron　size　Fe2O3　and　nano　PbTiO3　in　different　contents　were　chose　as　the　wave　absorbing　materials,　and　coatings　were　made　by　nano　composite　processing.　The　results　of　reflectivity　tests　showed　that　it　was　advantaged　to　extend　the　working　band　or　reduce　the　peak　value　of　the　reflectivity　using　nano　composite　coatings　at　low　or　middle　working　band.　The　frequency　at　which　the　reflectivity　was　below　-5dB　can　reach　to　4.3　∼　12.9　GHz,　working　band　was　8.6　GHz.　Compare　with　the　coatings　without　nano　composite,　the　wave　absorbing　ability　was　enhanced　evidently,　which　showed　a　new　way　to　increase　radar　wave　absorbing　properties　of　the　coatings.　Copyright　©　2007　MS&T07.