The　high-temperature　corrosion　behavior　of　Ti-6Al-4V　manufactured　by　selective　laser　sintering　in　air　at　600°C　for　400 h　was　studied.　The　corrosion　products　were　characterized　by　x-ray　diffraction,　x-ray　photoelectron　spectroscopy,　scanning　electron　microscopy,　and　energy　dispersive　spectrometry.　The　results　show　that　the　oxidation　kinetics　of　Ti-6Al-4V　manufactured　by　selective　laser　sintering　followed　a　sub-parabolic　law　at　600°C.　The　oxidation　resistance　of　the　Ti-6Al-4V　made　by　selective　laser　sintering　was　better　than　that　of　the　Ti-6Al-4V　made　by　rolling　and　laser　beam　melting.　Oxidation　products　on　Ti-6Al-4V　were　composed　of　multiple　layers　of　TiO2　and　Al2O3.　Several　intervals　of　Al2O3　layers　enhanced　the　oxidation　resistance　of　Ti-6Al-4V　manufactured　by　selective　laser　sintering.　The　growth　mechanism　of　the　oxide　scales　is　proposed.　©　2019,　The　Minerals,　Metals　&　Materials　Society.