The invention discloses an intelligent instrument for oral disease detection and treatment. The intelligent instrument is characterized by comprising an oral cavity supporting sleeve, a micro camera,a supporting sleeve, a supporting rod, a universal joint, an illumination lamp, a micro stepping motor, a dosage mechanism, a spring, a palate supporting pad, a lower jaw supporting pad, a supportingframe, a base, rollers, a controller, a display screen and a switch; the controller controls the illumination lamp and the micro camera to rotate, the oral cavity internal environment is photographed,and therefore oral disease detection can be achieved; the controller controls the micro stepping motor to rotate or stretch or retract so that drugs on the dosage mechanism can be conveyed to the designated position; the intelligent instrument is simple in structure and convenient to operate, the cleanness of the oral cavity is ensured, and the oral disease judgment accuracy and the oral diseasetreatment efficiency are improved at the same time.