ObjectiveIn order to classifyaroma clustering of Gongfu black tea by different procession methods and discuss the advantages and disadvantages of each evaluation methods using electronic nose techniques.MethodsBixiangzao was used as raw materials for processing Gongfu black tea by improved processing techniques, including UV irradiation, rotating treatments, adding exogenous tea juice to fermenting leaves, then electronic nose analysis method was applied to evaluate aroma clustering of Gongfu black tea’s treatment frozen samples and theirs end...