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The ultra-wide-angle lens’ focal length is 16 mm or shorter, and the angle of view is close to or equal to 180 degrees, commonly known as “fish-eye lens”. In order to make the lens reach the maximum viewing angle, the front lens of this lens is short in diameter and parabolic, projecting toward the front of the lens, which is similar to the fish’s eye, so “fish-eye lens” is named. Fish-eye lens has a large measurement range, but also large distortion, so it is not widely used in photogrammetry. If there is an effective correction method for the fish-eye lens image, it can be used in some measurements. Nowadays, the study of digital camera calibration is already quite mature, and the photogrammetry and computer vision experts both at home and abroad put forward many kinds of effective calibration method. Although there is a lot of camera calibrations method, to the fish-eye lens it is still immature. In this paper, I will focus on analyzing and comparing the existing fish-eye lens calibration models for fish-eye lens and achieve the calibration algorithm by programming, and finally use the stereoscopic measurement way to illustrate the accuracy of fish-eye lens calibration.