Abstract: In the study,volatile components in residues were obtained by ethanol extraction and analyzed by GC-MS. The antibacterial and antioxidant activity were separately determined by paper diffusion method and antioxidant experiment in vitro. The result showed that 29 components,including caryophylleneoxide(15.27%),camphor(8.71%) and borneol(8.57%),were identified in this volatile oil,representing 81.23% of the total detected constituents. According to the vitro tests of inhibitory bacteria,the essential oil had inhibitory effects on four tested microorganisms. The MIC of volatile oil was between 0.25% and 0.5% for Bacillus subtilis. And they were between 0.5% and 1% for the other bacteria. In the antioxidation experiments,the volatile oil had ability to scavenge DPPH free radical and reducing power to a certain extent. Above all,some active ingredients were still in residues and these residues processed a certain developing value.