A visual tooth cleaning, grinding and polishing instrument of the invention includes a host, an oral observation instrument and a cleaning and polishing tool. The host can not only drive the cleaning and polishing tool but also supply a power source and a control system for an illuminating system, an observation system and the like of the oral observation instrument. A picture shot by a camera of the observation system can be transmitted to a display of the observation system in time, so as to achieve the purposes of cleaning the teeth while observing a process of cleaning the dental calculus, dental plaque and pigmentation on the surface of the teeth with the cleaning and polishing tool and the cleaning effect instantly on a mobile phone, thereby effectively cleaning, grinding and polishing the teeth. A flusher or an electric toothbrush head or other interdental cleaning tools may also be mounted on the host or the oral observation instrument of the visual tooth cleaning, grinding and polishing instrument, so that the visual tooth cleaning, grinding and polishing instrument of the invention has multiple oral cleaning functions and can solve various oral cleaning problems in all aspects.
