Abstract: With the help of CCD images,realization of high precision positioning and mea-surement has become the basic standard for machine vision and real time photogrammetry system. But deformation and other degradation occurring during transmission are major lim-iting factors of the precision attainable with most current CCD cameras and framegrabbers. So precise radiometric and geometric transmission of images from CCD sensor to memory is a fundamental aspect of CCD camera calibration. The geommetric calibration system of the CCD camera based on the analytical plotter which SOKKIA researched and developed is dis-cussed. And some image processing algorithms are used in the system. The reliability and va-lidity are also discussed. The experimental results of the calibration of the CCD array will be taken as an important quality index for CCD evaluation.