Abstract: Reverse modeling based on CT measuring data is widely used in military, automotive, aviation, aerospace and other fields. At present, there is a lack of relevant research to verify the accuracy of the points based on industrial ICT equipment. A kind of registration and evaluation algorithm for the calibration of point extraction precision based on ICT equipment is presented. On the basis of many registration algorithms, a method that contains manual original registration and auto accurate registration is described. Two set of data for registration are obtained from ICT equipment and 3D optical scanner. The Modified Hausdorff distance between each two correlative points is used to verify the algorithm accuracy. The calculation steps of seven parameters and ICP(Iterative Closest Point) algorithms are presented detailed to demonstrate how to complete the original registration and accurate registration. The evaluation value for point-cloud data extraction accuracy based on CT equipment is calculated and the applicability of registration process is validated as self-designed standard parts for example.