The fatty acid composition of peanut oil is relatively good, with the advantage of easy digestion and absorption by the human body; however, as a fat, it should not be consumed in excess for a long period of time, so as not to cause high blood fat, high cholesterol and other diseases. Peanut oil, that is, the seeds of leguminous plant peanut extracted vegetable fat oil, its oil content is high, such as every 100g of peanut oil contains 99.9g of fat, of which 39g of monounsaturated fatty acids, polyunsaturated fatty acids, 36.6g, the composition of its fatty acids is relatively good, easy for the human body to digest and assimilate, but long-term overconsumption of unfavorable to the human body’s health. Peanut oil polyunsaturated fatty acids in the alpha-linolenic acid is relatively low, it is recommended and other edible oils such as flaxseed oil, etc. with, in order to complement each other. Daily use of peanut oil cooking in moderation, but should pay attention to the storage of peanut oil, low-temperature closed storage, to prevent peanut oil deterioration.