The terminals are the components that connect the battery to the external conductors. In electrotechnics, terminals refer to wiring terminals, also called wiring terminals, which are classified into single hole, double hole, socket, hook, etc., and materials, including copper silver plating, copper zinc plating, copper, aluminum, iron, etc. Their function is mainly to transmit electrical signals or conduct electricity. In the project, it is the interface reserved by the pre station project for the post station project and the embedded facility of the post station interface project. The terminal section inspection microscope can produce upright three-dimensional space image when observing objects, with strong stereoscopic sense, clear and wide imaging, and long working distance; It is equipped with a high-precision harness terminal image measurement and analysis system, which is combined into a harness terminal detection microscope. The perfect combination of high-quality optical system and high-resolution camera makes the section image clearer, and the unique multiple and fixed file makes the measurement more accurate.