This paper addresses the oxidation behaviour of Ti-Al-C films composed mainly of a Ti₂AlC phase. The films exhibited rather low oxidation rates at 600 and 700°C, with an oxygen-rich zone or a thin oxide layer appearing on the film surfaces. Much faster oxidation rates were observed at 800 and 900°C. The Ti₂AlC phase was quickly consumed by oxidation. From the film surface to the inner zone, TiO₂-rich layer, Al₂O₃-rich layer, and TiO₂+Al₂O₃ mixed layer was observed, respectively. The oxidation mechanism of the Ti-Al-C film is discussed based on the experimental results.