Endoscope has been widely used in people's life, and it is one of the important tools for humans to peek and treat human organs. The structure of endoscopes has undergone four major improvements over the course of more than 200 years of development, from the original rigid tube endoscopes and semi-curved endoscopes to fiber endoscopes to today's medical endoscopes. With electronic endoscopes, the image quality has also undergone a qualitative leap, allowing to provide a variety of solutions such as endoscopic hard tube laser cutting machine, snake bone laser cutting machine and so on.