The chemical composition of the volatile oil from aerial parts of Bupleurum exaltatum M.B. has been studied by GC-MS for first time. Forty-nine components (97.3 % of the total composition) were identified. (E)-β-farnesene (29.8 %), germacrene-D (13.3 %), spathulenol (12.9 %), bicyclogermacrene (4.1 %), caryophyllene oxide (3.9 %), myrcene (3.5 %) and α-humulene (3.1 %) were found to be the major constituents of the oil. The oil of B. exaltatum was characterized by a high content of sesquiterpenes (82.2 %), whereas monoterpenes contained only 10.6 % of the essential oil. Non-terpenic compounds were also consisted 4.5 % of the oil.