This high-frequency portable dental X-ray machine is designed by combining high-frequency and frequency conversion technology with color touch screen. It features with small size, light weight, low radiation, extremely clear imaging, high efficiency, and is easy to carry out. The machine adopts color touch screen for operation and display, with good human-computer interaction. It is very suitable for the examination before treatment, the effect comparison in the process of treatment, and the effect determination after treatment. It is an indispensable equipment in dental clinic. The portable dental X-ray machine is mainly composed of microcontroller, high voltage generation circuit, X-ray tube, color touch screen,