The invention discloses a tongue scraper comprising a U-shaped elastic skeleton. Both ends of the U-shaped elastic skeleton are respectively provided with an operating handle; the U-shaped elastic skeleton is also wrapped with a protective layer; and the upper edge and the lower edge of the protective layer are in arc shapes. In the invention, elastic deformation is utilized to enable the skeleton to enter an oral cavity suitably, and hard damage possibly to a tongue by the U-shaped elastic skeleton is avoided by utilizing the direct contact of the protective layer and the surface of the tongue; the tongue scraper makes the contact surface soft and smooth, and people feel comfortable and small friction when the tongue scraper is in contact with the tongue, whereas tiny stripes designed at the edge of the protective layer can also improve the scraping effect and ensures the scraping quality. The tongue scraper has simple process operation, convenient use and can regulate the opening width of the U-shaped elastic skeleton on a large scale. The tongue scraper manufactured according to human engineering has strong adaptability and good generality, thereby being suitable for being popularized and used among people.