3D laser scanning can be used efficiently for scanning proposed roads in hilly terrains which are normally inaccessible and can’t be surveyed with a total station due to high vegetation. As per project demand, we use 3D Laser scanner for constructing a digital three-dimensional model to provide the shape of 3D objects. Laser scanner use may be either active or passive scanners. Active scanners emit light, ultrasound or X-ray and detect its reflection or radiation while passive scanners detect reflected ambient radiation. Beside creating 3D modeling, the Laser scanner is also capable of topographic scanning, non- destructive testing of structures, and creating point cloud data of geometric surface.