Objective：To establish a gas chromatography method for the determination of atractylone in TangpingJian. Method：PEG-20M capillary column （30 m×0.25 mm×0.25 μm） was used as the chromatographic column. The temperature was programmed with the inlet temperature of 290 ℃ and detector temperature of 300 ℃，and the detector was hydrogen flame ionization detector （FID）. The carrier gas was nitrogen with the flow rate of 1 mL·min-1， and naphthalene was used as the internal standard substance. Results：The separation of the atractylone and the internal standard substance was good，and the average recovery rate and RSD was 100.1% and 2.64%，respectively. The atractylone content in the Tangpingjian was 1.13 mg·g-1. Conclusion：The established gas chromatographic method is simple，highly sensitive and accurate. It can be used for the detection of atractylone content in TangpingJian.