Abstract: The analysis of the stratospheric airship’s thermodynamics model is an important technical direction of the research of the key technologies of the stratospheric airship. According to the engineering verification and improvement of thermodynamic model, the suitable method for stratospheric airship′s inside air temperature measurement, including the distribution of the sensor, sensor selection, data transmission and processing, etc is put forward . After two flight test, contrast with temperature data of the boat by the dropsonde which was bind on the hull of the airship , this method verified the accuracy of the data of air temperature.

Key words: Stratosphere, Airship, Thermodynamics, Temperature measurement, Sensor