The invention discloses a tooth cleaner mainly composed of a brace and a handle, the brace comprises an upper tooth socket and a lower tooth socket, a plurality of small open holes which are arranged at intervals are distributed in the upper tooth socket and the lower tooth socket, one end of each of the small open holes is connected with a first guide pipe embedded into the brace, the other ends of the first guide pipes extend into the handle and are connected with a pump outlet of a pump module arranged inside the handle, the pump module also comprises a pump air inlet and a pump water inlet, the pump water inlet of the pump module is connected with a water storage module in the handle by a guide pipe, and the pump air inlet of the pump module communicates with an air inlet in the surface of the handle by a guide pipe. By using the tooth cleaner, the problems of poor cleaning and atomizing effects and poor user experience of the original tooth cleaner are solved.