Peony not only has ornamental value, but also has high health care, beauty and medicinal value. "Shennong Materia Medica Classic" lists peony as a "national product", "removing blood stasis and protecting the five internal organs"; There are as many as 22 kinds of peony prescriptions in Huatuo Shenyi Secret Recipe. Its beauty preservation value was recorded in Qunfangpu and Yang Yanlu in Qing Dynasty. According to other pharmacopoeia records and modern chemical analysis, peony petals, pollen and seeds are rich in vitamins, enzymes, sugars and flavonoids, 8 kinds of amino acids, 7 kinds of macroelements and 8 kinds of trace elements necessary for human body, which have the functions of preventing cancer and reducing blood fat. Petals from semi-flowering to flowering are used to make peony essential oil. 1 kg peony essential oil uses 6000 kg petals, and the price per kg peony essential oil is 1.2 million yuan-1.5 million yuan.