The fiber gastroscope uses the high-purity glass fiber bundle as the light conduction medium or carrier, transmits the image through the glass fiber {optical fiber} to the machine, and plays it on the monitor so that the doctor can see it. At the same time, the optical fiber also casts the light source on the machine to the observation position through the optical fiber.  The electronic endoscope was developed because the optical fiber was bent for a long time and some of the glass fiber would break, resulting in the loss of image and light conduction.   Electronic endoscope is the high resolution camera placed in the upper blade, at the end of acquisition of image directly to the machine's image processing center, with a front-facing camera resolution is greatly improved, and multiplied the reduced the number of the glass fiber to make gastroscope more fine and soft, patient pain significantly reduce the time of the inspection.  At the same time, the service life of the high-quality endoscope is significantly extended.