Abstract: To study the influences of cigarette material parameters on the deliveries of acidic aroma components in mainstream cigarette smoke,21 acidic aroma components in the mainstream smoke of cigarettes prepared with cigarette material of different parameters(including the grammage and air permeability of cigarette paper,the air permeabilities of tipping paper and plug wrapper,and the pressure drop of filter) were determined by GC-MS.The influences of material parameters mentioned above on the deliveries of acidic aroma components in mainstream cigarette smoke were investigated in view of single-variate and multi-variate. The multi-variate prediction models for the deliveries of 6 acidic aroma components(tetradecanoic, hexadecanoic,linoleic,linolenic,oleic and octadecanoic acids) and the total delivery of acidic aroma components in mainstream cigarette smoke were established versus the grammage of cigarette paper,the air permeabilities of tipping paper and plug wrapper,and the pressure drop of filter.The results indicated that:1) The deliveries of acidic aroma components were affected by the grammage of cigarette paper,the air permeabilities of tipping paper and plug wrapper,and the pressure drop of filter,while not by the air permeability of cigarette paper.2) With the increase of the grammage of cigarette paper,the air permeabilities of tipping paper and plug wrapper,and the pressure drop of filter,the deliveries of the 6 acidic aroma components decreased,while the deliveries of the other 15 acidic aroma components(including propionic, butyric,2-methyl butyric,3-methyl butyric,pentanoic,3-methyl pentanoic,4-methyl pentanoic,lactic,hexanoic, 2-furoic,heptanoic,benzoic,octanoic,nonanoic and decanoic acids) basically unchanged.3) The established models possessed good predictive ability.