Broussonetia papyrifera leaf contains a variety of nutrients and natural active substances, it has biological functions such as anti-oxidant, anti-bacterial, anti-inflammatory, and metabolism regulation of glucose and lipid. As an unconventional feed resource with considerable output and low price, it has broad application prospects in animal production. This paper reviews the chemical composition, physiological functions of Broussonetia papyrifera leaf and its application in animal production, further rese...