Abstract:Using headspace solid phase microegxtraction （HS-SPME）and gas chromatography with mass spectrometry（GC-MS）to analyse huangguan pear including pear skin，pear and pear juice what fragrance they have.The result of an experiment showed that：by authenticate，it had 56 kind of fragrances in the huangguan pear，and three specimen had ester.In the ingredient for fragrances of pear，the largest proportion was pear skin（27.21%）and the second largest proportion was pear（9.63%），however there was only a small percentage of pear juice（0.19%）.During the same period it also had some organic compound such as caproaldehyde，trans-2-Hexena，Nonanal which amounts to respectively account for pear and pear juice with 4.50%and 52.20%.6-methyl-5-hepten-2-one make up 0.42% and 1.48 % of the pear skin and pear.The Trans-2-Hexenal smelt like fresh greenery.6-Methyl-5-hepten-2-one had fruit of fragrance and fresh scent.And the Nonanal smelt like rose ，citrus and grease，at the same time when the Decanal became thin it will emit fruit of fragrance.And that all maked huangguan pear had unique fascinating flavour.In addition ，there were various ingredient of fragrances in the huangguan pear，with had 33 kind of fragrances and had more than 14 special components.Therefore，suggestions in processing huangguan pear juice，preserved fruit，canned and other products，keep the pear skin as far as possible，this can keeped the product unique fragrances.The pear of huangguan pear specimens detected in 16 kinds of fragrances components，huangguan pear juice samples detected in 18 kinds of aroma components，including nearly 21 kinds of endemic components，thus suitable for processing and production of fruit juice and canned products.