Abstract: The performance of a device for analyzing heating-moistening characteristics of tobacco was introduced, and the application of the device was demonstrated by taking the drying process of cut tobacco of C3F from Shandong as an example. The test results showed that:the device featured some advantages over conventional thermobalances, it could online determine the surface temperature and weight of cut tobacco with the proceeding of time when the sample's weight was in the range of 0.0001-10 g, at room temperature to 300℃ and air humidity 0-100%.