Abstract: The paper aims to explore the reuse of tea residues. We reviewed the researches on the reuse of tea residues in recent years at home and abroad, found that the reuse of tea residues tended to be saturated in industrial and agricultural fields, but there was little research in the field of animal husbandry, and the research direction could be adjusted to animal husbandry in the future. We briefly summarized the sources and compositions of tea residues, and then elaborated the applications of tea residues in 3 fields of industry, agriculture and animal husbandry, focusing on the researches of tea residues as animal feed in animal husbandry; finally, based on the existing researches on tea residues, we put forward the prospects of applying Wanglaoji tea residues as ruminant animal feed to provide a reference for the development and utilization of Wanglaoji tea residues in the future.