However, after he entered elementary school, his teachers reflected that he was very active, looked around in class, had difficulty concentrating, wandered off, made small movements, and never stopped doing his homework, was careless, and also showed impatience when he came home. The parents are so anxious that they bring their children to the hospital to ask if their children’s hyperactivity is “ADHD”. In fact, children’s hyperactivity is not the same as ADHD, children are active by nature, from the moment they are born, they perceive and understand the world through visual, auditory, tactile and other sensory organs, children are through imitation, play, games, and even quarrels to enhance the development and maturity of self-awareness and psychological defense mechanisms. ADHD is the most common neurodevelopmental disorder of childhood and is characterized by inattentiveness and hyperactivity in cognitively engaged activities, a lack of sustained attention, a high volume of activity and frequent changes in content, impulsive behavior, abruptness, recklessness, and distractibility. The onset of the disorder is usually before the age of 6 years, with symptoms becoming apparent during school age and gradually improving with age, and in some cases continuing into adulthood. Intelligence can be normal or near normal, often accompanied by learning difficulties, low interpersonal and self-esteem, and is several times higher in boys than in girls. Is it possible to leave a child with ADHD alone and wait for him to get better on his own? But the harm caused by ADHD in children is not to be underestimated: 1, the harm to the individual ADHD children in learning can not concentrate, can not take the initiative to learn, resulting in a decline in academic performance, in behavior can not be self-control, manifested as disobedience, discrimination, due to the existence of attention deficit disorder ADHD children often have barriers to communication with other children, will not make friends, building friendships so that the affected children’s behavior problems are exacerbated. Children with severe ADHD have significantly lower academic performance, are unable to follow classes, have difficulty finishing elementary and middle school, and are behaviorally disruptive and disruptive to others. As they grow older, they are susceptible to negative influences and temptations, and can get into fights and brawls, lie and steal, and even take the path of crime. 2, the harm to the family ADHD children’s learning not only poor performance, but also anorexia, truancy, disrupting the classroom order, so often called by teachers to criticize, so that parents become angry, home, they will scold the child, stick education. In some cases, it is a waste of time and money to hire a tutor, and some children become confrontational and bored with their parents, which affects family harmony. In school, children with ADHD often disrupt the classroom, fight, steal and destroy, and get low grades, even if the teacher spends a lot of energy, but also little gain, so that the quality of teaching is affected. Therefore, children with ADHD should be diagnosed early, intervened early and treated early. It is necessary to give appropriate treatment. The treatment enables the child’s attention deficit to be enhanced and improved, helps to establish good social behavior patterns, eliminates undesirable behaviors and aversion to school, helps the child to solve the problems of not making friends well, lack of self-confidence, and also strengthens the child’s organizational skills. Since ADHD often affects the entire family, it is best to have the child with ADHD work with his parents or other family members in conjunction with treatment. Return the child to a normal, healthy, positive and upwardly mobile learning and growing environment.