In computer vision research, traditional small field-of-view, visible-light cameras have limited access to information and poor adaptability to special environments.In order to increase the amount of acquired information and improve the adapatability to the environment, it is necessary to use a binocular ultra-wide-angle infrared camera.Aiming at the problem of low calibration accuracy of binocular ultra-wide-angle infrared camera, based on a general camera model, and by use of the active infrared radiation calibration plate, a calibration method is proposed.Through the calibration in the camera model, the internal parameters and external parameters of the binocular ultra-wide-angle infrared camera are accurately calibrated.The experimental results show that the focal length, baseline distance calibration error and the mean reprojection error of the calibration corners are lower than 0.99%, 0.24% and 0.60 pixels, respectively.The high calibration accuracy verifies the correctness of the proposed method.