Initially, enzyme preparations were mainly used in the brewing industry in China. Wuxi Enzyme Preparation Factory is the first enzyme preparation manufacturer in China. The produced BF-7658 amylase was first used in starch processing and textile desizing. Glucoamylase was produced by Aspergillus Niger strain UV- 1 1, which was first popularized in liquor and alcohol industry to improve liquor yield. Alkaline protease 2709 was used in detergent industry, and its granular enzyme characteristics made enzyme-added washing powder popular in China at that time. These popularization and application indicate the preliminary application and development of China enzyme preparation in the industrial field. Enzyme preparation is a common protein molecule, which plays the role of an efficient catalyst in the biological reaction process, that is, it will help a chemical reaction process to occur quickly and effectively. Enzyme preparation can not only play a role quickly and effectively, but also be degradable. It can effectively improve the reaction speed of biochemical processes, some biochemical processes that happened slowly or never before under the same conditions.