According to archeologists' research, about 350 million years ago, in the Pennsylvanian era before the Stone Carbon Centuries, earthworms were already living on the Earth. In the huge family of cicadas, there is a group of insects called earthworms (earth yuan), commonly known as earth elements. This tiny insect passed through the vast sea of ​​mulberry fields for hundreds of millions of years. With its invigorating vitality, it quietly multiplied. Today, as people's level of scientific understanding continues to improve, they are truly discovered its value. Yuan Yuan is not only blindly valuable Chinese herbal medicines, but more importantly, more than ten of the 174 proprietary Chinese medicines in the Pharmacopoeia contain earth elements. In traditional Chinese medicines for the treatment of cardiovascular and cerebrovascular diseases, more than 80% contain earth elements. On November 15, 2000, the State Drug Administration of the People's Republic of China issued the "Notice of Suspension of the Use and Sale of Pharmaceuticals Containing PPA", which resulted in the suspension and sale of 15 kinds of pharmaceutical preparations containing PPA. This makes the drug development of more than 6,000 pharmaceutical factories in China dependent on traditional Chinese medicines, making the use of TCM herbs more and more important, and the demand of large and medium-sized pharmaceutical factories for TCEs is increasing. Secondly, in terms of food consumption, the scientific analysis of modern times, the earth element contains about 40% of high-quality protein and 17 kinds of amino acids, vitamins A, C, D, K, and a variety of trace elements that are beneficial to the human body. It is a high-quality nutritious food. . Long-term consumption can not only make you sick, and prolong life, but also can enhance the function of human immunity. The latest information proves that the Tuyuan has a gratifying effect on the prevention and treatment of AIDS. It has become a beautiful landscape on people's table. Some domestic and foreign companies engaged in special aquaculture are actively researching and developing Tuyuan's food and daily necessities projects, and have achieved certain results, and developed a series of products such as “Tuan Yuan Beauty Liquid†and “Tu Yuanfenâ€. After the project is put on the market, it will drive the value of food and daily necessities. According to the "Compendium of Materia Medica" record, its taste salty, cold, micro-toxic. Into the heart, liver and spleen three classics, with blood stasis, blood circulation, eliminate disease, continue to fold injury, long-term efficacy of malaria, attending to blood circulation, blood stasis, bruises, hepatosplenomegaly, Mad dog bites, confidants, fever, Tongqiao, heavy tongue and other tongue embolism, especially for the continued success of the ribs. Modern medicine shows that Tuyuan has anti-aging, anti-tumor, and lipid-lowering effects. He has cirrhosis, brain damage, vasculitis, osteomyelitis, hematopathy and so on. Now, the market demand for Tuyuan is increasing year by year. According to the relevant departments, the annual demand for the earth yuan has exceeded a million tons. Authoritative sources analyze that in the next 10 years, the market demand for earth dollars will be in short supply. At present, due to factors such as man-made and environmental factors, the wild soil element is almost depleted, which makes the demand for the Yuan more tense. At present, the scale of breeding of the earth yuan still falls short of the needs of the market. Therefore, artificial breeding of soil yuan has a wide market prospect, and it is also a best project for science and technology to become rich.