Abstract:The taste substances of tea-leaves mainly affected the flavor and color of the tea infusion， however， the flavor played a crucial role in the quality of tea-leaves， which was the important factor that affects consump－ tion. These substances themselves had their own taste， but when they were mixed， their own taste may be strengthened， weakened or even changed. Thus this thesis mainly summarizes the research status of the rela－ tionship and the flavor characteristics of the present flavor substances，and the research and evaluation of flavor substances was discussed.