Peanut oil is composed of 20% fatty acids and 80% unsaturated fatty acid composition, including oleic acid, linoleic acid and palmitic acid, iodine value is about 80 ~ 110, which belongs to the drying oil, oil is light yellow transparent, fragrance, is a high quality cooking oil. According to the national standard GB1534 - 2003 "peanut oil," the provisions of peanut oil production process can be divided into the leaching of peanut oil and pressed peanut oil. The leaching of peanut oil is the oil produced by solvent extraction.