This paper focused on the applied of machine vision in the field of Diecutting.Diecutting is used widely.It can be cutted into various shapes as the needs of users with various materials by the die-cutting machine. But the die slice may miss because machine may take away it. Then it would cause the product became substandard product. So there are many people to distinguish the product and pick out substandard product in the workshop. This paper believe that machine vision is a good method to solve the probl...