Traditional metallurgical examition meth is through cutting samples directly grinding on tested body this method is called examination on site. Hardware configuration Hardware configuration incldes hardware metallographic microscope at the scene, throwing electric grinder, electrolytic polishing instrument, high-megapixel digital camera, dedicated adapter, and so on. Metallurgical-site system, observation, photography, image acquisition, storage completed. INSTRUMENT This instrument has comblined with preparing samples on site, microscope observe and microscope photogragh together. Operation is simple and quick, preparing samples in diffirent way: mechanical, electrolysis and chemical. Microscope consists lf wide field-of-view erepiece and flat field-view achromatic objectives, lightness can be changed, it has micro focus mechanism, len focus is stable. Image is clear. Light source is spotlight with halogen family elements, it has guaranteed quality of image. Dual-line switchable high magnet energy microscope basement can fix microscope on tested body steadily, tested body can be various tuves of plane, view-field can be free microscope on tested body steadily, tested body can be various tuves of plane, view-field can be free modified in X of Y direction. Camera lens directly connect with microscope, auto camera can take photograph on site, measurement of light Strength is automotical.