An infrared camera integration time sequence calibration device is applied to camera exposure time calibration and aims to solve the problem that in the prior art, an infrared camera integration time sequence cannot be accurately calibrated. According to the infrared camera integration time sequence calibration device, a motor, a shutter and an incremental encoder are connected through a transmission rod; the center line of the angular aperture of the shutter is aligned with the zero position of the incremental encoder; a control system receives a timing system external synchronization signal, a zero signal, an SIN signal and a COS signal which are provided by the incremental encoder are used as feedback elements for phase locking and speed measurement, a speed loop and a position loop are closed, and then the motor is controlled; the control system drives the motor, the motor drives the disk type shutter and the incremental encoder through the transmission rod, and the center line of the angular aperture of the shutter, the zero signal of the incremental encoder and the timing system external synchronization signal are made strictly synchronous; the time when light rays emitted from an infrared source pass through parallel light tubes and the center line of the angular aperture of the shutter and finally arrive at the target surface of an infrared camera is controlled. The infrared camera integration time sequence calibration device is high in calibration accuracy and convenient to use.