In ground based Lidar system, the targets are used in the process of registration, georeferencing for point cloud, and also
can be used as check points. Generally, the accuracy of capturing the flat target center is influenced by scanning range
and scanning angle. In this research, the experiments are designed to extract accuracy index of the target center with
0-90°scan angles and 100-195 meter scan ranges using a Leica HDS3000 laser scanner. The data of the experiments are
listed in detail and the related results are analyzed.