Obesity has become a serious social problem, the Jiangsu Provincial People’s Hospital admitted a 4-year-old boy Dongdong, already 100 pounds, serious complications due to obesity, some parents believe that the fatter the child the better, “little fat pier ” cute, attractive, in fact, obesity is a disease, is the 20th century An important problem affecting the health of children. Childhood obesity disease can lead to adult hypertension, diabetes and coronary heart disease, many adult obesity disease often began in childhood, so should cause enough attention. In recent years almost every year there are reports of sudden death of children, they mainly die from apnea, suffocation leading to death. Obesity is actually a kind of nutritional imbalance, long-term calorie intake more than consumption, causing excessive accumulation of body fat resulting in weight more than 20% of the normal standard for children of the same age, can be diagnosed as obesity. In addition to a few obese children is due to endocrine diseases, such as adrenal cortical hyperplasia and other causes, most of them are simple obesity disease. The simple obesity disease produces the reason mainly is the nutrient intake is too much, especially the fat is too much, such as likes to eat the frying, the deep-frying and so on the excessive high calorie and contains the fat many food such as the hamburger, the French fries and so on is called the junk food food, but the activity quantity is too little, the energy consumption is little and causes the obesity. Intergenerational parenting is also an important factor in obesity, due to compensation psychology, as well as the elderly often believe that obesity rich, not disease, etc., careful feeding, and arrogant indulgence, resulting in an increased incidence of obesity. Simple obesity mostly occurs in infants, 5 to 6 years old children and adolescent children. The main performance is obviously overweight, appetite is very good, eating large, like sweet and greasy food, breast, leg, abdominal wall, thighs and other places subcutaneous fat is very thick, make action inconvenient, do not like activity, easy fatigue, often sweating. Severe obesity due to the thickening of the chest wall, the diaphragm increased, the emergence of obesity pulmonary heart syndrome. Because of obesity, fear of ridicule and reluctance to interact with other children, resulting in low self-esteem, timidity, loneliness and other psychological barriers. Relying solely on diet food to lose weight and do not love exercise is the main reason for weight loss failure. The countermeasure of pediatric obesity disease is mainly to reduce the intake of high-calorie, high-fat food and increase the consumption of energy. Adjust the diet and exercise, reduce the excess fat in the body, so that the weight gradually decreases to normal, should start with dietary management to restrict the diet, and encourage the arrangement of a certain amount of activities, especially collective physical activities. Dietary management should not only achieve the purpose of weight loss but also take care of the normal growth and development needs of children to ensure the basic nutritional needs and not to make weight loss too fast. Infants should be fed mainly with milk, and children should be fed mainly with rice and flour, and starchy, sweet and fatty foods should be limited. Recipes should be low fat, low sugar and high protein, more vegetables and fruits, such as radish, green vegetables, cucumber, tomatoes, lettuce, bamboo shoots, apples, citrus, etc., gradually make the children get used to eating less at each meal. Do not eat too much dinner, lift the habit of eating late night snacks, eat less and more meals, do not eat snacks, do not drink sugary drinks. Obese children are often reluctant to exercise because of clumsy movements, they should be encouraged to do both effective and easy to adhere to the exercise, such as morning running, walking, gymnastics, etc.. The amount of exercise should be with the exercise does not feel fatigue after excessive and does not make the appetite increase greatly as the degree. Treatment also for obesity caused by the psychological barriers to psychological behavior treatment. Obese children lack self-confidence, timid when interacting with strangers, afraid of discrimination, worried about not being able to wear beautiful and decent clothes, afraid of being insulting nicknames by classmates because of excessive obesity, poor partnership. Some normal children are unwilling to interact with obese classmates, so that obese children like to hide something in their hearts, unwilling to talk to their parents, classmates and teachers, have a sense of loneliness and inferiority, unwilling to express themselves in the group; parents worry about the future of the children and worry about the future, all such, including the children themselves and parents of psychological problems, should be treated correctly through the disease, grasp the scientific treatment measures, through parents, teachers, classmates’ care and close cooperation. The care and close cooperation of parents, teachers and students, remove psychological barriers, so as to gradually restore normal weight. Prevent obesity disease first of all, we must change the concept that the fatter the child is, the healthier it is. Pregnant mothers should prevent excessive weight gain, so as not to oversize the fetus. Breastfeeding after birth, not to add solid food before 4 to 5 months. Regular physical examinations and growth tests should be done, and if excessive weight gain is detected and there is a tendency of obesity, early intake of excessive starchy foods, such as potatoes and sweet potatoes, should be restricted. Strengthen passive or active physical exercise and increase the opportunities for activity. School-age and adolescent children should develop good eating habits and participate in sports, such as playing ball, swimming, etc.; they should not eat too many sweets, such as candy, cookies, sweet drinks, etc.; the three meals should be evenly distributed, and they should not eat too much at one meal. Children with a family history of obesity should avoid snacks between meals, and should not eat fried, fried, fatty foods. Adolescents are prone to gain weight and often continue to adults, resulting in future diabetes, hypertension, etc., should control diet and increase exercise as early as possible. When suffering from chronic diseases and mobility and bed rest, to prevent more food to avoid gaining weight. Surgery for obesity has gained wide consensus, but there has been a debate in the medical community as to whether surgery is suitable for children with obesity and what kind of surgery to choose, often surgery is only considered when the child already has serious complications of obesity, and it mainly depends on whether the parents can accept the possible risks of surgery.