The invention discloses a composition for clearing tooth stains, which belongs to the technical field of oral health preparation products. The composition comprises substance capable of generating oxygen radicals, substance capable of forming gel or colloid, stabilizer, pH adjustor, wetting agent, anti-allergic agent, xylitol, flavoring agent and deionized water; and the appearance shape of the composition is gel or colloid. The composition for clearing the tooth stains has the advantages of stable property, difficult decomposition and liquefaction and long-term storage at the normal temperature, and is convenient to store, transport and use, so the composition can be operated and used not only by professional doctors in dental clinics and but also by patients at home.