Abstract: An electric toothbrush head includes a brusher, a supporting housing, a transmission shaft, and a tail plug. The brusher is provided with a hairy surface, an inner wall of the brusher away from the hairy surface is provided with an outer ring column, a pothole is provided in a middle of the outer ring column, and two spiral fitting grooves are provided at two symmetrical ends of an outer sidewall of the outer ring column. A connector is provided on a top of the supporting housing and matched with the brusher, a cylinder is provided in a middle of the connector and matched with the outer ring column, two first bayonets are provided at two symmetrical ends of an inner wall of the connector and snapped with the two spiral fitting grooves. The electric toothbrush head can improve the cleanliness, prolong the service life and eliminate the noise.