The invention discloses a curved tooth brush structure, which comprises the components as following: a curved brush head which possesses a curved brush surface, wherein the curved brush surface is provided with more than two clusters of brushes arranged with intervals at random, adjacent surfaces of the curved brush surface are provided with an upper end surface and a lower end surface, and a corresponding side surface and a second side surface, the lengthes of brushes become shorter from the first side surface and the second surface to the center of the curved brush surface; and a brush handle, wherein one end of the brush handle is connected to the lower end surface of the curved brush. The internal, external and occlusion surfaces of teeth and the gaps between teeth and gum are fully covered and cleaned, toothpaste is easy to adhear to and get in the brushes, tooth brushing becomes time-saving and labor-saving, and a high efficiency is provided.