Camellia oleifera originated in China and is important for the economy of southern China.Seeds from four major cultivars of Camellia oleifera in Guangxi province southern China were analyzed to investigate the contents of 14 kinds of fatty acids, unsaturated fatty acid, monounsaturated fatty acid, polyunsaturated fatty acid and saturated fatty acid to guide reasonable eating of Camellia oleifera oil.Many kinds of fatty acids were found compared with former researches.The results also proved that contents of oleic acid, unsaturated fatty acid, monounsaturated fatty acids and polyunsaturated fatty acids range from 67.7-76.7%, 82-84%, 68-77% and 7-14%, which are very similar to olive oil.Camellia oleifera oil has many advantages to Rapeseed oil, Peanut oil, Soybean oil, Safflower Seed Oil, especially pig oil.