A method for the determination of bromomethane residues in food by headspace gas chromatography was developed. Samples in sealed bottles were determined by headspace gas chromatography with a μECD detector at constant temperature. Linear plots were obtained in range of 10~100 μg/kg withy the limit of detection (LOD) being of 10 μg/kg. Besides, Recoveries ranged from 95.9% to 102.0% at fortification and the coefficients of variation were between 3.7% and 6.5%. This method was shown to be simple, sensitive and precise.