LH-A1 automobile special electronic endoscope is specially designed for the auto repair industry, mainly used for the inspection about carbon deposition plug and wear of auto engine, cylinder, gear case, differential mechanism, fuel pipe, engine, muffler, transmission system, water tank, fuel tank of test. When the auto engine failure, the original method need to disintegrate the engine, then judge which cylinder has problem from the sound by experiments. But using LH-A1 automobile special electronic endoscope, the probe can be inserted into the spark plug hole or nozzle, so that we can directly check the internal coke and other foreign bodies in cylinder. Thus not only enhance work efficiency, reduce the repair costs, but also avoid the damage caused by repeated dismounting to the vehicle. It is compact and portable, has clear image, small diameter, and can sway, store video, and connect to computer. In virtue of the player with the function of truncation chart,the record progress can be snapshot into pictures .These pictures can used as maintenance record ,which can give a powerful witness for charges and avoid dispute.