Eating is a complex physiological process that is closely related to the structure and function of the digestive system and requires normal oral development, including the development of oral structures, oral muscle tone, oral sensory and motor functions. Infants’ eating skills are gradually developed and matured, as are other functions, such as motor function and language development, which is a process from immaturity to maturity. Neurodevelopment plays an important role in the development of eating; eating is also influenced by psychological and social factors. The result of incorrect eating can cause malnutrition, which in turn affects gastrointestinal function. Therefore, a child with feeding problems needs to be analyzed from several aspects to find out the causes and deal with them correctly. Oral diseases, digestive system diseases, brain and nerve damage, and psychosocial factors, all of which are related to eating. Oral and digestive system diseases will be accompanied by corresponding disease manifestations in addition to feeding problems, e.g., oral ulcers, inflammation of the throat or cleft palate will have symptoms of food refusal, salivation and frequent choking, and ulcers, inflammation and cleft palate will be found; feeding problems caused by gastrointestinal diseases will likewise be found with corresponding signs and symptoms. Two conditions are easy to ignore and deserve attention: a. Brain and nerve injury: motor and sensory functions are necessary for feeding, and children with neurological injury often have oral motor disorders in addition to abnormalities such as limb movement disorders, and the corresponding manifestations, such as: slow feeding, easy choking and coughing, many interruptions in feeding, easy vomiting and refusal to eat, not chewing, not drinking from a cup, frequent opening of the mouth, salivation, difficulty swallowing, and so on. The main manifestation may be slurred speech at school age. Psychosocial factors: Children without organic diseases often have feeding problems, commonly: 1, continuous breastfeeding or milk feeding, not adding complementary foods in a timely manner, eating a liquid diet without solid food for a long time, which affects the development of oral feeding functions, including oral movements and perception of food. 2, parental behavior and cognition: parents’ feeding knowledge is insufficient, their own feelings to replace the child to make the judgment of feeding, rather than the child’s needs, can not be correctly adjusted according to the child’s situation feeding, such as the food “hot” and do not add, no hunger when the child is forced to eat, which weakens the interest in eating. 3.Eating environment: more interference, distraction, or other unpleasant factors. 4, individual factors: individual children have different neurotypes, i.e., different temperaments, and different reactions to eating, and children with difficult temperament have stronger emotional reactions, which can easily cause eating problems. Do not take into account the different personalities of children, are using the same feeding method is not appropriate, easy to cause feeding psychological problems. Therefore, when you encounter a child with eating problems, you should find out the cause from a doctor, therapist, nutritionist, etc., so that you can solve the problem correctly and not take it for granted. Only normal feeding development and feeding can ensure adequate intake of nutrients to ensure the growth and development of children.