Music therapy is a technique produced by synthesizing medicine, psychology, physics, music aesthetics and other disciplines. It utilizes the structural characteristics of musical art, the physical properties of sound, and the infectious power of musical emotion to coordinate the function of human nerve life and improve the psychological state of human beings. Music therapy can have certain therapeutic effects on certain physiological defects, emotional disorders, behavioral abnormalities, and social communication disorders, such as training, regulation, correction, and education. The physiological effect of music is to make the human skin resistance and muscle tension appropriate, blood flow rate and respiratory rate harmony, stable blood pressure, heartbeat coordination, gastrointestinal peristalsis and digestive secretion is good. The psychological effect of music is the influence on emotions. Good music can make people’s emotions smooth, performance relaxed and pleasant. In the music rhythm of the regulation of such a role, so that the inner rhythm of human emotions also produce the corresponding resonance, at the same time, the music rhythm also has a certain “implied role”, can evoke a variety of emotional responses. The psychological effects of music are as follows: 1. music has a channeling effect on the emotions, which can make the inner depression, uncertainty, and uneasiness to be relieved, thus obtaining relaxation. 2. music’s imagery association effect, when feeling a kind of music, people are always associated with the life experience, character, emotion, and desire to be able to fully discover the self, awakening memories, and comprehend the difference between the reality and the non-reality, so as to make the emotion sublimation and satisfaction. 3. music plays a role in the behavior, which is not only to make people’s emotions resonate with the inner rhythm of music, but also to make people’s emotions resonate with the inner rhythm. Satisfaction.3 Music acts on behavior, and American music therapist Liu Bangrui said, “Music therapy is basically a behavioral science that focuses on the dynamics of human behavior and ways to improve behavior toward health.” It is generally accepted that a person’s mental health is expressed in a balance between social constraints and individual freedom of expression. Childhood ADHD exhibits exactly that behavioral abnormality, plus the presence of many comorbidities with childhood ADHD, such as oppositional defiant disorder, conduct disorder, anxiety disorders, dysphoria, learning disabilities, and substance abuse, all of which can be supplemented with music therapy. In clinical work, it is often found that many inattentive children, when studying, take the initiative to ask to turn on the radio or turn on the stereo to listen to music, in order to ease the psychological pressure, which is an example. Modalities and techniques of music therapy. Music therapy can be divided into group therapy and individual therapy. In the design of technical methods to pay attention to the individual needs of the child, on the one hand, is directly related to music, the use of music experience, on the other hand, the relationship between the therapist and the child, usually rely on the music to establish, often divided into: feeling music therapy, active music therapy, improvisational music therapy, creative music therapy. 1, feeling music therapy, is to listen to music-based approach. Can choose and the child’s emotions similar to the music, imagery association, choose the slow rhythm, tune beautiful background way plus plus guide language, song recall, through the child’s own point of the song, to recall, to find the self. Language discussion feeling type, to recall in listening, association for discussion. 2, active music therapy: is through the music operation, to help the children to revitalize, so that they can cognitive reality. Improvisational music therapy: It is a new way to provide children with non-verbal communication for self-expression of emotions, which can increase children’s creativity, responsiveness and awareness of interpersonal relationships. 4. Compositional music therapy: It can be used for older children and adults with ADHD, and it can help patients to improve their decision-making ability. Through the experience of music, a structure is acquired to learn how to choose and make decisions. Music therapy provides children with a free, broad, to coordinate the patient’s emotions and behavior, prompting the patient to restore their own means of treatment, which appears to be more effective for patients with emotional and behavioral disorders.