TiN/ZrN　multilayers　can　effectively　improve　the　erosion　resistance　of　metals,　particularly　titanium　alloys　employed　in　aero　engines.　To　explore　the　corrosion　damage　mechanism　of　TiN/ZrN　nanoscale　multilayers　(nanolaminate),　a　novel　[TiN/ZrN](100)　nanolaminate　coating　was　deposited　on　Ti-6Al-4V　alloys　by　multi-arc　ion　plating　method.　Salt　spray　corrosion　tests　and　hot　corrosion　experiment　were　carried　out　to　evaluate　the　corrosion　resistance　of　the　coating.　The　corrosion　and　damage　mechanisms　were　explored　with　the　help　of　detailed　microstructure,　phase　composition　and　element　distribution　characterizations.　The　salt　spray　corrosion　tests　showed　that　the　[TiN/ZrN](100)　nanolaminate　coating　possessed　good　corrosion　resistance,　which　protected　substrate　against　the　corrosion.　The　low　temperature　hot　corrosion　tests　showed　that　the　oxidation　occurred　on　the　surface　of　the　coating,　which　improved　the　oxidation　resistance　of　the　sample.　However,　the　oxidized　droplets　squeezed　the　coating,　and　destroyed　the　oxidized　layers.　As　a　result,　the　coating　was　peeled　off　from　the　substrate.　The　research　highlights　the　corrosion　resistance　of　the　novel　TiN/ZrN　nanolaminate　coating　and　offers　a　support　for　their　application　in　engine　compressor　blade.