The essential oil composition of fresh aerial parts of Bothriochloa bladhii (Retz.) S.T. Blake was analyzed by capillary GC-FID and GC-MS methods. The analysis led to the identification of 60 constituents forming 89.6 % of the total oil compositions dominated by monoterpenoids (46.0 %) and sesquiterpenoids (35.6 %). The major constituents identified were acorenone-B (20.9 %), camphene (20.8 %), isobornyl acetate (7.4 %), acorenone (3.8 %), limonene (3.6 %) and α-pinene (3.5 %). Other constituents identified were borneol (2.8 %), neointermedeol (2.1 %), tricyclene (2.3 %) and intermedeol (1.6 %). Comparison of the results with previous reports showed considerable qualitative and quantitative variations in essential oil constituents.