Abstract:Litchi is a nutritious fruit，and the nutrients in litchi peels have strong physiological activities.However，litchi peels as a by-product have not been effectively developed and utilized，and little is known about the nutrient composition of the peel.The main chemical components and their biological activities of litchi peels were introduced.Furthermore，the methods for extracting main chemical components from litchi peels were compared，and the applications of litchi peels in food preservation，water treatment，biomedicine，cosmetics and new energy materials were reviewed.Finally，the development of litchi peels was prospected，which was of significance for the further development and utilization of litchi peels.