The child’s tongue moss thick white is generally the embodiment of dampness, indicating that the body has cold dampness or cold dampness is heavy. Normal tongue image is light red tongue, thin white moss. There is a white tongue, tongue coating thicker, if the tongue coating is not too thick, indicating that there is cold and dampness in the body, but the disease is still on the surface, not hurt the internal organs of the gas; if the tongue coating is too thick, indicating that the cold and dampness is heavier, has been injured in the spleen and stomach. Overall the child’s tongue coating white thick, indicating that the body is too cold, spleen and stomach weak, should not eat cold things. Tongue can reflect the nature of the disease and the depth of the disease, reflecting the internal organs of the cold, heat, false, solid, observe the tongue is an important method of diagnosis of Chinese medicine, to diagnose the disease to provide an important reference information, because of its professionalism, must be professional Chinese medicine practitioner to carry out tongue diagnosis. Found that the child’s tongue coating thick white situation, should be timely consultation, by the Chinese medicine practitioner for diagnosis and treatment, parents should not judge on their own, so as not to delay the condition.