A tongue cleaner in which a gap between a concavely curved surface formed in a cleaner head and a sheet for covering the same is minimized or eliminated, decreasing the likeliness of tongue coating to accumulate therebetween. A head is provided with a first sheet on a face of the head formed with a concavely curved surface. The sheet is fixed to a lateral side of the head, enabling the sheet opposed to the concavely curved surface to be slidable thereon. After arranging a sheet material on the concavely curved surface with the head being in a single-piece state as a component of the tongue cleaner, the sheet material is pressed against the concavely curved surface by means of a lower mold and an upper mold.