Device and method of recovery characteristic calibration of temperature sensors under transonic and supersonic conditions are introduced in this paper. By method such as inverse series connection and local mutual correction at low flow speed, several typical temperature sensors are calibrated under conditions of Mach 0.95 to Mach 2.0, and the calibration results are compared with NASA's. Comparison results show that relative deviation between them ranges from 0.1%~2.8%. Some laws on recovery characteristic of temperature sensors under transonic and supersonic conditions are revealed through calibration, which can provide basis for precise measurement of high-speed gas temperature.