In recent years, biopharmaceuticals has become one of the fastest growing businesses in medicinal industry. Therapeutic antibody, accounting for about 35% of the biopharmaceuticals, has become the largest biopharmaceutical product category. Antibody drugs play an important effect in the treatment of a number of human diseases, especially in antitumor. In 2011, the global sales of antibody drugs have reached 48 billion dollar. Currently, China is in the initial stage of the rapid development of antibody drugs. At present, 17 kinds of monoclonal antibodies were approved by SFDA. In 2015, it is estimated that the sales of antibody drugs of China will be 32.5—65.0 billion Yuan. Although we had a breakthrough in antibody products, we still have a big gap compared with the developed countries in amounts and types. With the continuous development of biotechnology, the market prospects of antibody drugs will become more and more extensive.