Abstract: In order to study the effects of different stalk position and different growing area of cut stems in cigarette common mainstream smoke,analyzed the common mainstream smoke from 6 areas of domestic Flue-cured upper、middle and lower cut stem and cut leaf tobacco,The results showed that:in the smoke of different stalk position of cut stem, the tar was upper≥ middle＞lower,the nicotine was upper＞middle≥lower;in the smoke of different stalk position of cut leaf,the tar and nicotine was upper＞middle＞lower;there was no obvious regularity in carbon monoxide of different stalk position of cut stem and leaf. The differences of the tar and nicotine in cut stem and cut leaf between different growing area was litter. The carbon monoxide of the cut stem in different growing area was compared,it was heighter in BiJie and LinChang,but lower in ChenZhou.The tar and nicotine was obviously lower in the smoke of cut stem than it in the smoke of cut leaf;but the carbon monoxide was contrary.