Eucommia itself is a kind of Chinese herbal medicine with a long history, and Eucommia extract also has certain pharmacological effects, so we first have a simple understanding of Eucommia leaves. Eucommia leaves can be used as a feed additive for animals, and it is a natural Chinese herb. Chlorogenic acid, one of the main components in Eucommia leaves, has a variety of functions, such as antibacterial, free radical scavenging, antioxidant, and growth promotion. Compared with other chemical additives, eucommia extract can be said to be a safe, environmentally friendly and without any toxic side effects of additives, and its effect is better. If the leaf extract is added to the animal feed, it can promote the rapid growth of livestock and poultry, and there is a certain effect of disease prevention and treatment. It is a good alternative to antibiotics.