01 introduction to biopharmaceutical Biopharmaceutical is a product for prevention, treatment and diagnosis that uses biotechnology to separate effective components from organisms, biological tissues, cells and body fluids. Biopharmaceutical is an interdisciplinary comprehensive field formed by the combination of biotechnology and the pharmaceutical industry, covering chemical pharmaceuticals, biotechnology drugs, traditional Chinese medicine, medical devices and health industries. It is one of the most active fields in the current international scientific frontier. Biopharmaceutical raw materials are mainly natural biological materials, so the safety is relatively high and the side effects are relatively small. These significant advantages make biopharmaceutical accepted by more and more people, and it is also one of the reasons for the rapid development of biopharmaceutical. At present, biopharmaceutical is the industry with the most extensive application of biotechnology, and is also considered to be one of the most promising industries in the 21st century. Biopharmaceutical products include antibodies, vaccines, blood products, cell therapy, recombinant proteins, diagnostic reagents, etc., which are mainly used for the treatment of tumors, AIDS, cardiovascular and cerebrovascular diseases, hepatitis, autoimmune diseases and metabolic related diseases.