Abstract: This paper presents a CCD photogrammetry system of high accuracy specifically for photogrammetric measurements in the vacuum cryogenic environment, which can be used to measure the distortion of satellite antennas. When the antenna is at different temperatures in the process of measurement, the real-time images of the antenna’s surface are taken by this system. Then the images are processed by a special software to obtain the displacement data of the antenna’s surface. This system can also be used in other applications in the same specified environment.