Sunflower (Helianthus Annuus) is a herbaceous plant of the composite family, native to South America, which were brought to Europe from North America by the Spanish. Originally it used for ornamental purposes. In the late 19th century, it was brought back to North America from Russia. It is also distribute in China. Sunflower seeds are often fried and eaten as a snack. Sunflower oil can also be squeezed for food and oil residue can be used as feed. Sunflower seed oil contains linoleic acid, phospholipid, protein, carbohydrate, citric acid, tartaric acid, chlorogenic acid and other organic acids and carotene. It has been proved that phospholipid can prevent hyperlipidemia and hypercholesterolemia in rats and linoleic acid can partially inhibit experimental thrombosis in rats.