The temperature measurement device includes a thermography 20 for measuring a temperature distribution of a predetermined range in a non-contact manner; a calibrator 21 including at least one heater 30 able to generate heat to a preset temperature; thermistors 32a to 32d provided on installation points on the calibrator 21, and measuring temperatures at the installation points, the installation points having different temperatures; and a controller 22 for calibrating a first temperature measurement result obtained from a temperature distribution of a range covering an object (an eye E of a calf C) measured by the thermography 20, based on temperature differences between a second temperature measurement result obtained from a temperature distribution of a range covering the calibrator 21 measured by the thermography 20 and a third temperature measurement result obtained from a temperature distribution of the calibrator 21 measured by the thermistors 32a to 32d.