Lonicera japonica is an important herbaceous plant with homology of medicine and food in traditional Chinese medicine. Honeysuckle extract is a general term for the bioactive components in honeysuckle，including organic acid，flavonoids，and iridoid glycosides. It has attracted widespread attention due to its anti?inflammatory， antibacterial，antioxidant，and immunomodulatory functions. Honeysuckle extract can enhance the antioxidant and immunomodulatory abilities of livestock and poultry，improve their growth performance，and prevent animal diseases. This paper reviews the main biological functions of Honeysuckle extract and its research progress in livestock and poultry production，and provides an outlook for future research，aiming to provide a reference for the in ? depth utilization of Honeysuckle extract in livestock and poultry production.

Lactobacillus reuteri is a beneficial Lactobacillus that exists in the intestinal tract of humans and animals，and has attracted extensive attention due to its various biological functions such as immune regulation and antibacterial. The article mainly reviewed the biological functions of Lactobacillus reuteri，its application in animal nutrition，and the research prospect，which may provide a useful reference for the deeper application of Lactobacillus reuteri in animal nutrition.