To provide a torquemeter protecting device and a torquemeter calibrator capable of preventing surely a torquemeter from being damaged.

This torquemeter protecting device for protecting the torquemeter in a torquemeter calibrator 1 for impressing a torque to a reference torquemeter T1 and the calibrated torquemeter T2 to calibrate the calibrated torquemeter is provided with a measuring amplifiers 31 for measuring the generated torques generated in the reference torquemeter T1 and the calibrated torquemeter T2, a judging means (for example, a CPU 34 and a control part 44) for judging whether the generated torques measured by the measuring amplifiers 31 has exceeded a predetermined prescribed value or not, and a stopping means (for example, the control part 44) for stopping the impression of the torque to the reference torquemeter T1 and the calibrated torquemeter T2, when the generated torques is judged to have exceeded the predetermined prescribed value, by the judging means.