The present disclosure relates to a peptide that regulates fat metabolism and uses thereof in the preparation of a medicament for the treatment of diseases associated with abnormalities in energy metabolism, particularly fat metabolism. The peptide of the present disclosure can reduce fat absorption, reduce fat accumulation in the liver and regulate fat metabolism, and has an advantage of being orally administered as compared with other general peptide products, and thus can also be used as an active ingredient of a health care product for regulating fat metabolism.