No parents want their children to be obese. The Childhood obesity is a condition in which the overweight than the standard level, which is a problem that occur of Thai society or the society around the world Nowadays, children are facing with this problem. Moreover, The obesity can lead children to be hypertension, cardiovascular disease and diabetes Finally, obesity may be the cause that makes children die. There are 3 causes that make children get in to obesity; wrong eating habit, lack of exercise and heredity.