The rose essential oil was extracted using simultaneous steam distillation,and the chemical composition was analyzed by GC-MS,which identified a total of 14 chemical components and the total content was 95.25%.Citronellol is the main component of the essential oil,the relative content was 90.37%.Antimicrobial activity showed that rose essential oil possessed different excent antimicrobial activity to seven kinds of bacteria except for Aspergillus niger,in which,the MIC values of rose essential oil against S...