A pressure working condition correction method for temperature measuring deviation calibration results of temperature sensors is proposed in this paper. As an example, temperature measuring deviation of a certain bare-typed temperature sensor is corrected. According to Reynolds criterion, calculated correction results of temperature measuring deviation is validated by the method which replaces change of pressure by that of Mach number. The results show that calculated correction results are near experiment data, and the proposed correction method can not only provide foundation for this type of temperature sensors, but also give reference for other types of temperature sensors.