Pyruvate is a component of human body, which is mainly involved in the metabolism of sugar and fat in human body, and is also one of the intermediate products of carbohydrate metabolism. Pyruvic acid and its salt are widely used in medicine field, and are used to produce tranquilizers, antioxidants, disease resistant agents, synthetic drugs for hypertension and so on. Pyruvic acid can be used in the synthesis of medicine and amino acids, which can improve the production efficiency, especially in pharmaceutical industry, it can shorten the process and simplify the process. For example, 2-phenyloctenic acid, which is made of this product, is a kind of antipyretic and analgesic and diuretic drug. Using this product as raw material can greatly reduce the production cost. It is also used as the anti tuberculosis drug, calcium isoniazide pyruvate, hormone synthesis, pyreniumapamote as an insecticide, and also as pesticide raw materials. The tryptophan can be produced by biochemical reaction from pyruvic acid, indole and ammonia, and it can also be used to produce MSG and spices.