ADHD, also known as attention deficit hyperactivity disorder (ADHD), is a common behavioral disorder in children. These children have normal or basically normal intelligence, but have learning, behavioral and emotional deficits, mainly manifested by inattention, short attention span, excessive activity, emotional impulsivity, generally poor academic performance, difficult to get along with people at home and school, and often make parents and teachers feel distressed in daily life. Pediatric tic disorder is a muscle twitching disorder that occurs in childhood. It is a sudden, brief, repetitive, stereotyped twitching attack of one or two muscle groups. It is characterized by eye blinking, eyebrow squeezing, teeth showing, strange faces, shoulder shrugging, neck turning, head nodding, torso twisting, arm shaking or kicking, lower limb twitching, etc. Some children have throat clearing and strange sounds. The symptoms intensify when they are emotionally stressed, decrease when they are concentrated, and disappear when they sleep. It tends to occur repeatedly, and the symptoms change frequently. Many parents tend to confuse these two diseases, but in fact, the two diseases are completely different in terms of etiology, clinical manifestations, and treatment plans, and both require the joint efforts of parents and teachers under the guidance of a pediatrician to achieve good results.