Chlorogenic acid is an ester of caffeic acid and quinic acid, is a major phenolic compound in coffee, isolated from the leaves and fruits of dicotyledonous plants. This compound, long known as an antioxidant, also slows the release of glucose into the bloodstream after a meal. This substance can be used as anti-infectious active ingredient, it has wide anti-virus, anti-bacteria effects, and has relatively lower toxicity and side-effects. It has obvious anti-infectious effects, and does not like to lead Anti-microbial resistance. Due to its obvious anti-infectious effects, it not only can be used in pharmaceutical field but can be used widely in many other fields like food, feed additives, cosmetics also.