Abstract: The essential oil of flesh from Nanguoli pear was obtained by simultaneous distillation . The chemical componentswere separated and identified by GC/MS. The yield of essential oils of flesh .from Nanguoli pear. was 0.17% when extracted bysimultaneous distillation. The experimental results confirmed the presence of 26 volatile components when extracted by steamdistillation. The experimental results demonstrate that the major components were Bis(2-ethylhexyl) phthalate (29.4%), Ylangene(23.47%), α-Farnesene(8.4%), 9-Octadecenoic acid, ethylester(6.13%), Bicyclo[3.1.1]hept-2-ene,2,6-dimethyl-6-(4-methy,l-3-pentenyl) (4.4%), Linoleic acid ethyl ester (2.41%).

Key words: Nangguoli pear, flesh, essential oil, GC/MS