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Press-infiltration technique was used to prepare Ti2AlN/TiAl composite (the Ti2AlN volume was 25%) and the high temperature oxidation behavior of Ti2AlN/TiAl was researched. The results indicate that the oxidation of the composite can be divided into two steps between 600 and 800 oC, i.e. the initial fast oxidizing and the later slow oxidizing; the oxidation are divided into three steps between 900 and 1100 oC, including the fast, slow and uniform oxidizing steps, but the second step of slow oxidizing of the composite is very short at 1100 oC. The specimens of Ti2AlN/TiAl composite were soaked at 800, 1000 and 1100 oC for 24 h, respectively, and the mass gain of them reaches 0.83, 2.58 and 27 mg/cm2, respectively. The evolution of the thickness and the structure of the oxide layer and the variety of oxides in the Ti2AlN/TiAl composite were studied at different temperatures and at different oxidation steps, and the main factors that influence the oxidation performance of the composite were discussed.