Nowadays, fermentation is widely applied in industry of pharmaceutical, food, energy, chemical, agriculture and environmental protection. The biggest difference between fermentation and other chemical industries is that it is a biochemical reaction carried by organism.  The fermentation industry has the advantages in certain aspects that other industries cannot replace. Compared with the traditional fermentation, the modern fermentation engineering has its superiority beside the above characteristics. Except the microbes, we can also utilize "engineering bacteria" toreact with the aid of cells and enzymes of animal and plant. The equipment comprises not only the converntional fermentation tanks but also a variety of broreactors with high automation, so that the fermentation level get greatly improves.