Industrial microscope is a kind of binocular microscope which can observe objects from different angles and make the eyes feel stereoscopic. It can be used in metallography, earth science, forensic examination and material quality control and research. Microscope is an optical instrument composed of a lens or several lenses, and then related combination. It is mainly used to magnify small objects and turn them into an instrument that can be seen by human naked eyes. There are two kinds of microscopes: optical microscope and electronic microscope. In fact, microscope is widely used in agriculture, industry and other fields are very important.