The optimal treatment period for ADHD in children cannot be determined and should be treated in the first instance after diagnosis until the time period for completion of treatment. Generally, the onset of ADHD in children is at the age of 5 years old, manifested as hyperactivity, excitement and restlessness, irritability, mostly accompanied by cognitive impairment and learning difficulties. If parents find that a child has similar symptoms as those described above, they should go to the hospital as soon as possible for relevant tests to rule out ADHD. If ADHD is confirmed, it should be treated as soon as possible. For children under 6 years of age, behavioral treatment is the main treatment, while children older than 6 years of age can be treated with pharmacological and non-pharmacological treatments, including behavioral treatment and quantitative EEG biofeedback therapy. Stereotactic surgery can be performed if the above methods are ineffective. It is recommended that parents must achieve early detection and treatment at the age of onset of ADHD in children. In addition, parents do not need to be overly nervous, professional treatment under the guidance of doctors can be significantly improved or fully recovered.