Al2O3-SiC composite was synthesized from natural pyrophyllite and clay by carbothermal reduction reaction．The Al2O3－SiC composite was added to carbon－containing refractories for improving the oxidation resistance of the refractories，and the effect of the addition on the oxidation resistance was investigated．The results showed that by calcining the admixtures of pyrophyllite－carbon and clay－carbon at 1600 ℃～1700 ℃ in argon atmosphere，the Al2O3-SiC composite could be easily obtained，and by adding the Al2O3－SiC composite，the oxidation resistance of the carbon－containing refractories was greatly improved．
