Abstract: The research progress on surface oxidation resistant technology of titanium alloys is reviewed.The surface oxidation resistant coatings,including TiAlN coatings,NiCrAlY coatings,TiAl(Cr) coatings and enamel coatings,are described firstly.And then the titanium alloy surface alloying technology is described in detail,including aluminizing,double glow plasma surface alloying technology,laser surface alloying and ion-implanting.The development direction of surface oxidation resistant technology is pointed out.