对Ｔｉ－６Ａｌ－４Ｖ合金在１８℃，１００℃，２５０℃下的微动磨损特性及防护工艺进行了研究．结果表明：该合金微动磨损的主要磨损形式是疲劳脱层，其磨损量随温度升高而下降，高温微动磨损量与磨损区表面所形成的氧化层的性质及厚度有关．对合金采用离子镀、离子注入、离子氮化等表面强化措施对改善合金的抗微动磨损性能有较好的结果，可使磨损量减少３８．８％～８０．０％． The fretting wear characteristics and protective technology of Ti-6Al-4V alloy at 18 ℃, 100 ℃ and 250 ℃ were studied. The results show that the main wear form of fretting wear is fatigue delamination, the wear loss decreases with the increase of temperature, and the fretting wear at high temperature is related to the properties and thickness of the oxide layer formed on the surface of the wear zone. The use of ion plating, ion implantation, ion nitriding and other surface strengthening measures have good results on improving the fretting wear resistance of the alloy, which can reduce the wear amount by 38.8% -80.0%.