The utility model discloses an adopt critical flicker fusion frequency to detect tired device of maincenter, include the binocular camera who provides the lighting device of uniform illumination, the scintillation device that provides the flash of light and the two mesh pupil images of shooting for people's eye, its characterized in that, binocular camera's image output end is equipped with display device, the last pupil sighting target that is equipped with of display device, be equipped with the power control knob on the scintillation device, have the fatigue of detection object, evaluate efficient advantage.