Abstract: In order to promote the high quality of flue - cured tobacco, and improve the economic efficiency of flue - cured tobacco, meteorological conditions in the growth stage of k326, agronomic and economic characters using 4 kinds of transplanting date were contrasted to get the best of transplanting date. The experimental results showed that, as the transplanting date delay, the average temperature during strong growth period descended and then rose, but the average temperature during mature and all growing period rose and then descended. The average temperature was all suited to tobacco growing. The precipitation during strong growth period showed a trend of increased significantly. If the transplanting date was premature, precipitation during strong growth period could not meet the high quality tobacco production. There is little difference in sunshine hours of 4 treatments, and it could meet the needs of high quality tobacco growth. Plant height, yield and value of flue - cured tobacco with the different transplanting dates were different significantly. Appropriately delaying transplanting date could get better agronomic traits and high economic efficiency.