Polyenophosphatidylcholine is alkaline, generally weakly alkaline, and is often used as an aid in the treatment of liver disorders. The chemical structure of polyenophosphatidylcholine is identical to that of endogenous phospholipids. After oral administration of polyenophosphatidylcholine, it is metabolized into liver cells and molecularly binds to the membranes of liver cells and organelles, thereby protecting the membrane structure from damage. In addition to this, it is also secreted into the bile. In medicine, polyenophosphatidylcholine not only regulates the damaged membrane structure and restores the damaged liver function and enzyme activity to the normal level, but also regulates the energy balance in the liver and promotes the regeneration of the damaged liver tissue. It also converts neutral fats and cholesterol into easily metabolized forms in the body through metabolic mechanisms and stabilizes bile as it is secreted into the bile. Although polyene phosphatidylcholine has many functions, it should not be taken casually and should be used in the correct dosage under the guidance of a doctor.