It is salty, cold, slightly poisonous, and belongs to the liver meridian. It is used to treat bruises, blood stasis, swelling and pain, amenorrhea, postpartum blood stasis and abdominal pain. Now research found that the earth yuan contains active ingredients for volatile oil, amino acids, proteins, sugars, fats, steroid compounds, phenols, organic acids and alkaloids, also contains iron, manganese, zinc, copper and other eight essential trace elements, it also has anti-coagulation, improve and increase the blood supply of the main organs and tissues in the body and the whole body, but also anti-tumor and inhibit the breathing of liver cancer and stomach cancer cells, but also improve the heart muscle and brain tolerance to ischemia and reduce the oxygen consumption of heart and brain tissues.