Children with yellow tongue is related to food effects, upper respiratory tract infections and indigestion, which can be treated by gargling, taking anti-infective drugs and adjusting diet. 1. If it is due to eating too many persimmons, oranges, colored candies, etc., resulting in yellow tongue coating, without other systemic symptoms, can be relieved by drinking more water or gargling. 2. If a child has an upper respiratory tract infection with a thin yellow tongue coating, accompanied by fever and chills, headache, sore throat, cough, nasal discharge, etc., the treatment can be given to anti-infective drugs, such as cephalosporins. 3. If the tongue is yellow and thick due to indigestion, accompanied by bad breath and bitterness, and hunger and other symptoms, the treatment can adjust the diet, and if necessary, take probiotics, such as bifidobacteria lactobacillus triple live bacteria tablets. After the appearance of tongue abnormalities should be timely consultation, under the guidance of a professional physician treatment, do not self-medication.