Abstract:As a big tea producer in the world，China has produced a large number of tea dregs，tea end，camellia，tea stem and other tea by-products while producing finished tea and consumption.These tea byproducts still contain a lot of nutrients.It has good development value and application potential.This paper introduced the effective components and their efficacy of tea by-products，and summarizes the comprehensive utilization of tea by-products in food，medical treatment，agriculture，environmental protection and so on.Finally，the application prospect of tea by-products was prospected.