As people’s material life is gradually rich and solid, parents fear that the next generation will lose at the starting line, sparing no effort to supplement their diet, resulting in more and more obese children around us. Children’s obesity is not a sign of health, the World Health Organization provides: health refers to physical health and mental health. Children’s obesity is not a blessing, it may be a curse, that is, “a fat birth a hundred diseases”, obesity will bring a lot of diseases, threatening health, and even cause premature death. The main harm of obesity is that it can induce, complicate and aggravate a variety of serious diseases, such as coronary heart disease, hypertension, diabetes mellitus, hyperlipidemia, gout, fatty liver, osteoporosis and sexual dysfunction, malignant tumors and so on. For children: obesity not only caused by physical bulk, activity inconvenience; and cause psychological obstacles, obese children prone to inferiority complex, depression and other mentality, thus directly affecting his collective activities or games in a state of withdrawal, not good to move, relatively few opportunities for exercise. Therefore, obesity in young children should cause our parents and teachers to pay great attention and vigilance! So, what is the basis for measuring the standard weight of children? It is the children’s standard weight formula: that is, 1 ~ 12 years old children: standard weight (kg) = full age * 2 + 8; if the weight of young children more than 10% to 20% for overweight, more than 20% to 30% for mild obesity, more than 30% to 50% even if it is severe obesity. Data proved that early childhood is most likely to become fat, early childhood obesity is different from adult obesity, early childhood obesity is mainly long fat cell number, once long into, this number will be unchanged for life, so our parents must not raise their children too fat, pay attention to the nutrition at the same time should also be avoided and prevented from over-obesity, or else he will be life-long obesity. Causes of obesity in young children, a lack of scientific knowledge of parental nutrition and traditional misconceptions. 72% of parents believe that the child can be supplemented with vitamins, minerals, protein powder and other nutrients; 46.7% of parents believe that the child loves to eat what the body lacks. Under the domination of this concept, give children too high nutritional pressure, resulting in nutritional “harm”. Second, the bad family lifestyle. The survey found that obese children’s family meals are unreasonable, meat, eggs, fish, etc. like to use frying, stir-frying, deep-frying, steaming, boiling, etc. to use less. Third, poor eating behavior. Young children like to eat big fish and meat and too sweet, too salty, fried food, coupled with eating too fast, too much and other factors, which leads to obesity in young children. The fourth is the improper guidance of individual teachers. Some teachers always want children to eat more and grow faster, or by praising children who eat fast and eat more, suggesting that other children should do the same. Under the teacher’s good motivation, the child inadvertently ingested a large number of calories. Experts believe that the prevention and intervention of obesity in young children is not a “diet”, but to correct poor dietary behavior and lifestyle to build a healthy behavior. At present, childhood simple obesity should take comprehensive interventions, including diet control, behavior modification and exercise training. For childhood obesity, dietary control includes changing poor eating habits, choosing food reasonably, and reducing food intake. For three meals a day, eat 35% of the total amount of food for breakfast, 45% for Chinese food and 20% for dinner. Brushing children’s teeth as early as possible after dinner can avoid overeating in the evening. In terms of food selection, avoid high-sugar, high-fat and high-starch foods, and in terms of cooking methods, use more steaming, cold mix, and less pan-frying and deep-frying. Try to avoid letting your child eat high-calorie foods such as French fries, ice cream and cheese. For children who eat a lot of staple foods, limit their intake of staple foods by reducing them by 1/3 at each meal and gradually reducing them to 1/2. Changing to smaller bowls, chewing slowly, and drinking soup before meals are all ways to avoid overeating. Kindergarten teachers must remind children to chew slowly to slow down the speed of eating, which is beneficial for weight control. Behavior modification involves correcting the child’s bad habits, such as partiality, anorexia or eating to relieve his or her bitterness, loneliness and dissatisfaction, and dislike of exercise. Moderate exercise not only increases energy expenditure but also reduces appetite in obese children. Exercise when the pulse reaches about 150 times per minute is more appropriate, this intensity will not make the child too fatigue, but also can effectively consume body fat, exercise 40 to 60 minutes a day, exercise 5 days a week, to have a better therapeutic effect. Generally adhere to the exercise for 2 to 3 months, obesity will be reduced. Should choose to have the whole body muscles to participate in aerobic exercise, including running, swimming, hiking, climbing stairs, jumping rope, shuttlecock, etc., so as to consume more fat, to achieve the therapeutic purpose.