Testing pov% in oils, tos tudy the antioxidation activites of self-prepared tea polyphenol emulgent was made. These were compared with those of tea polyphenol powder and BHA+BHT. The experimental resullt showed that the antioxidative activites of tea polyphenol emulgent are superior to those of tea polyphenol powder and BHA+BHT. The Antioxidative activites of tea polyphenol emulgent of peanut oil and rapeseed oil are 4 times and 3 times better than BHA+BHT respectively.