The invention relates to an integrated automatic disinfection dental comprehensive treatment machine, and belongs to the technical field of medical instruments. The integrated automatic disinfection dental comprehensive treatment machine comprises a base, a middle column, a rotating arm, a protective shell, a spittoon, a seat cushion, armrests, a headrest and a backrest, wherein an instrument traybalance arm is fixed on the rotating arm, an instrument tray is fixed on the instrument tray balance arm, and an ozone water disinfection device is integrated in instrument tray and can also be integrated at other positions of the dental comprehensive treatment machine. According to the invention, the perfect, safe and effective waterway disinfection solution is provided for the dental comprehensive treatment machine through the ozone water disinfection device, so that the oral treatment with safety guarantee is provided for a patient, the dental comprehensive treatment machine waterway directly contacting human body can be real-timely and effectively disinfected, the integrated automatic disinfection dental comprehensive treatment machine has characteristics of no pollution, no side effect, no occupation of indoor space, high integration degree, hidden pipelines inside, neatness, attractiveness, convenience in disinfection, no influence on doctor operation and the like, and the requirements on consulting room hardware by the integrated automatic disinfection dental comprehensive treatment machine are the same as the conventional dental chair.