2-phenylethanol(2-PE) was fermented with an in situ product adsorption technique(ISPR) by Sac-charomyces cerevisiae AS 2.1182.After being isolated and purified,the product was detected by gas chromatography-mass spectrometry(GC-MS),and the purity of 2-PE achieved 99.49%.The odor detection threshold of 2-PE synthesized by different ways was tested.Results indicated that recognition threshold(RT) of 2-PE produced by fermentation was moderate and differed 0.33 ag/L from that of 2-PE extracted from rose essential oil.Additionally,odoriferous quality of 2-PE acquired from different sources was identified by electronic nose.The odoriferous quality of 2-PE derived from fermentation was close enough to that extracted from rose with a similarity of 95.88%.