Abstract: To investigate the thermal condition of Panzhihua tobacco planting area from 1980 to 2013, the spatial pattern and change trend of the 10℃ AAT in Panzhihua tobacco planting area were analyzed, and the differences among regions and districts were compared, to provide data support for the formulation of the corresponding cultivation and cultivation system of flue-cured tobacco on the basis of heat conditions. The results showed that: the 10℃ AAT was higher in the east and west district of southern Panzhihua and Renhe County than that in Yanbian and Miyi County of northern Panzhihua, and presented an increasing trend (5.44℃/a) from 1980 to 2013. The east and west district and Renhe County are located in the valley of Jinsha River, which has higher 10℃ AAT and obvious change trend, Miyi and Yanbian have high altitude and low change trend, Miyi has the lowest change trend of 10℃ AAT, and the changing curve of these two counties is relatively uniform due to the same latitude.