Cedar wood oil is an important natural plant fragrance, belonging to the aromatic oil, which is a light yellow to yellow clear oily liquid with the characteristic aroma of cypress wood. The main components of cedar oil are α-cedrene, β-cedrene, cedrol and cedar wood, etc. It can be processed into a series of products for the formulation of perfumes for make-up and soap. Cypress oil can be extracted from the dry roots of cypress tree, being one of China's major exported essential oils.