Artemisia annua has the efficacy of cooling, calming liver fire, preventing dental disease, sore throat and constipation. Artemisia annua has a unique flavor due to the presence of siderophore Lianone aromatic oil (C10H10O). It has good therapeutic effects on lowering blood pressure, lowering blood lipids and relieving cardiovascular diseases, and is a typical health care vegetable. Artemisia rehmanniae is beneficial to the diaphragm, appetizer, water, detoxification and other effects; it can cure weak stomach qi, nausea, swelling and other diseases; folk used in the treatment of acute infectious hepatitis.