Children's weight loss exercise should be carried out under the guidance and supervision of parents or teachers, and children's interest should be fully taken care of and mobilized, so that they are willing to accept it, so as to achieve better exercise effect and persevere. Parents or teachers should give more encouragement to their children when they exercise to lose weight, especially taking care of their subtle psychological feelings and changes. Some obese children are sometimes teased in kindergartens, schools or other collective occasions, which makes them have some psychological obstacles and are unwilling to participate in group activities and associate with other children, thus greatly reducing their interest in participating in sports and even affecting the healthy development of their personality. Sometimes, obese children may master a certain sport a little slower than other children because their movements are not flexible enough. At this time, parents and teachers need to give them careful care, including choosing safe and effective forms of exercise according to their interests, such as running, playing football, swimming and doing weight-loss exercises. Exercise time does not need to be fixed. According to children's habits, it can be done in the morning or from 6 pm to 8 pm. It is necessary to follow the principle of gradual progress, and the period is 1 month. After the children get used to it, gradually increase the amount of exercise. Every progress of children should be fully encouraged. When children are exercising to lose weight, their daily activities can still be carried out as usual. Parents and teachers should not be too hasty, not to mention forcing their children to do sports they don't want to do or shouldn't do, or setting unrealistic "goals" for their children to lose weight. Otherwise, it will be counterproductive, not only difficult to achieve the goal of losing weight, but also may have an adverse impact on children's physical and mental health. It should be noted that children are in the stage of growth and development, and their demand for nutrients is higher than that of adults. Children's exercise to lose weight should properly control calorie intake, including reducing the intake of high-calorie foods, such as sweets, chocolates, fried foods, hard fruits and other high-sugar and high-fat foods. The daily intake of lean meat, eggs, fish, bean products and other foods rich in high-quality protein should be fully guaranteed. All kinds of foods rich in dietary fiber, minerals, vitamins and trace elements are essential in weight loss exercise, and should be fully ingested.