Children’s accumulation of bad breath can be adjusted by dietary adjustments, massage, taking antinausea drugs to regulate, as well as eliminating oral and digestive diseases. 1. Dietary adjustments: (1) Breastfed children, the mother to avoid cold, greasy food. (2) formula-fed children, milk powder concentration appropriately thinner, if the baby to add complementary foods, add less complementary foods, take a light digestive diet, avoid raw cold, greasy food, eat more fruits and vegetables, to maintain a smooth bowel movement. (3) Children feed regularly and quantitatively, avoid fat, sweet, spicy stimulation, raw and cold food. 2. Treatment through massage techniques, chiropractic or abdominal rubbing to help the intestines and stomach peristalsis, accelerate metabolism. 3. Take antinausea drugs to carry on the treatment, can orally take Baohe oral liquid, pepsin powder, pancreatic enzyme tablets and other medicines treatment. 4. In addition to the need to rule out periodontitis and gastric disease, it is recommended to regularly check the oral cavity, if necessary, check the gastroscope and test Helicobacter pylori, if these conditions, need to be eliminated through the treatment of these diseases. Children’s accumulation of bad breath is recommended to consult a doctor in a timely manner, under the guidance of a targeted treatment, if necessary, standardized treatment.