Abstract: In order to investigate the influence of climate conditions on the quality of aged redried flue-cured strips, the differences between the aroma constituents (neutral, acidic and basic constituents), pH value and smoking quality of Yunnan redried flue-cured strips aged for two years at two districts with different climate, Yuxi of Yunnan Province and Xuchang of Henan Province of China, were studied.The results showed that:1) the neutral, acidic and basic constituents in the strips aged at the two districts changed with significantly different extents, although with the same trends;2) the reduction of alcoholic constituents and the pH value of the tobacco aged at Xuchang were more significant than that at Yuxi;3) the amount of neutral constituents and total amount of aroma constituents, including the neutral, acidic and basic constituents, in the tobacco aged at Xuchang were lower than that at Yuxi; 4) the increase of the basic constituents in the tobacco aged at Xuchang was higher than that at Yuxi;and 5) the smoking quality of the tobacco aged at Xuchang was not as good as that at Yuxi.