Optical 3D measurement and 3D printing technology are widely used in digital museums, cultural relics digitization, cultural relics restoration, design creativity, handicraft development and other fields. 3D scanning can quickly obtain 3D data of cultural relics without touching cultural relics and clearly and completely capture local details of cultural relics. The scan data is accurate and reliable, which can restore the authenticity of cultural relics and  record  cultural relics information,and can be used for cultural relics research, protection, restoration and other work.