The volatile oils from rhizome of Alpinia blepharocalyx K. Schum. and A. kwangsiensis T. L. Wu et Senjen were extracted by steam distillation and analyzed by gas chromatography-mass spectrometry. The results indicate that cinnamic acid methyl ester, as the main component, makes up 90.88% and 94.54% of oils from A. blepharocalyx and A. kwangsiensis, respectively. Apart from cinnamic acid methyl ester, there are other 20 same components in two volatile oils, showing that two plants are close relationship from the point of chemotaxonomy. These results provide basic data for chemotaxonomy and comprehensive utilization of A. blepharocalyx and A. kwangsiensis.