A novel vibration-exciting grinding and polishing tool head device comprises a connecting base, a vibration source, an installing cap, a connecting sleeve, a grinding element or polishing element, a flexible isolation pad and a vibration sensor. The upper end of the connecting base is fixedly connected with the lower end of a connecting sleeve inner hole, the installing cap is fixedly connected with the upper end of the connecting sleeve inner hole, the vibration source is arranged in the installing cap, the upper surface of the vibration source is fixedly connected with the lower surface of the upper end of the installing cap, the lower surface of the isolation pad is fixedly connected with the upper surface of the upper end of the installing cap, the lower surface of the grinding elementor polishing element is fixedly connected with the upper surface of the isolation pad, and the vibration sensor is fixed to the connecting base. The connecting base is provided with a wire guiding penetrating hole. The novel vibration-exciting grinding and polishing tool head device has the advantages of being reasonable in structure, good in working performance and low in operation cost and having wider application occasions and prospect.