Abstract: The aroma components were extracted from mengding yellow bud by solid phase microextraction, and aroma composition of three samples were analyzed by gas chromatography-mass spectrum (GC-MS) , at the same time, sensory evaluation method was used to evaluate aroma characteristics of mending yellow tea, in order to understand aroma composition of mending yellow tea and analysis the ifluence between aroma composition and sensual aroma characteristics. The results showed that 90, 80, 96 components were identified from sample1, sample 2, sample 3, which respectively accounted for 82.69%, 90.03%, 89.25% of the total peak area of the aroma components, various kinds of aroma components of mengding yellow tea, such as a ldehydes, hydrocarbons, ketones, alcohols had more types of compounds and had high relative contents, the numer of acids was few and the relative contents of acids was low, the relative contents of esters was lower, but there was little difference between the number of esters and ketones. The main components of three samples were β-fllower cypressene, germacrene-D, caryophyllene, linalool, ptytol, et al. Combined with the results of sensory evaluation from three samples, characteristics of mending yellow tea was high sweet, faint scent and sweet smell. Mending yellow tea compared with other tea, aroma components was close to green tea and oolong tea, and aroma quality with green tea scent and oolong tea flavor. It was concluded that mending yellow tea had rich aroma components and sensual aroma characteristic was better, composition of aroma components had a certain influence on aroma characteristics. The study provided some theoretical reference basis for the production and procession of mengding yellow tea.