Tea seed oil was certified as a new resource food by China~ Ministry of Health.It contains twenty kinds of fatty acids and unsaturated fatty acid occupies the main part,especially oleic acid content as the highest.Meanwhile,tea seed oil is characterized by possessing many kinds of active ingredients,such as polyphenol,tocopherol,etc.In addition,tea seed oil has been found to be natural antioxidants,for it can be well stored at room temperature and displays strong antioxidant ability,which is similar to that of olive oil and higher than that of other edible oil.This review compiles recently published scientific reports on the chemical compounds and antioxidant activity about tea seed oil with its antioxidant mechanisms at home and abroad,.The paper provides a base for further study of tea seed oil,especially about its nutritional and healthcare function.