The 3D laser scanner, handheld Huaguang special angular point, by a special corner Huaguang handheld company independent research and development production, the use of high-grade PET, PVC and other materials, to avoid the ordinary paper easy breakage and poor adhesion defects, can be used repeatedly. The quality of corner point is clear, no defect and no tooth defect, which reduces the scan error and improves the accuracy of 3D scanning data splicing.