Abstract: In order to improve cigarette quality,the volatile components in tobacco leaves of different varieties,grades,growing years and areas and cut tobacco of 3 modules making up blend A of Honghe brand series were analyzed with GC/MS.Based on the analysis results and desired product style and quality,the 3 modules were separately optimized,and the cigarette blend was modified.The results showed that:1) in the original cigarette blend,modules of cut tobacco and tobacco leaf,the volatile components showed a uniform distribution trend in general,and the main volatile components were ketones,acids,alcohols,esters and alkenes;2) the difference of volatile component content between tobacco leaves from different stalk positions,growing year,varieties and grades was obvious;3) comparing with the original blend,the content of main aromatic components in the modified cigarette blend increased obviously,especially the content of ketones and alcohols raised by more than 10%,while that of aldehydes decreased by 9.21%;the results of sensory evaluation indicated that the quality of cigarette was improved and product style was as desired.