Dysarthria is one of the more common symptoms of childhood, which is defined as a change in pronunciation or incoherence. In mild dysarthria, the only symptoms are inaccurate or unclear pronunciation, and the speech can be understood; in severe dysarthria, the speech is difficult to understand because of the obvious mispronunciation. The best way to remove the tongue tie in infancy is to remove it surgically so that the child can pronounce normally. Treatment: 1. Surgery: Surgery can be considered for those who have been treated ineffectively by phonation training. Vocal folds and vocal fold grooves lead to vocal abnormalities, can be used for vocal fold injections, vocal folds, type I thyroid chondroplasty, in order to narrow the gap between the vocal folds, improve the voice; male voice female tone feasible type III thyroid chondroplasty, so that the vocal folds tension down, reduce the pitch; female voice male tone feasible type Ⅳ thyroid chondroplasty (ring nail close to the surgery), enhance the tension of the vocal folds, increase the pitch; ventricular band vocal disorders can be cut ventricular band Ventricular band vocal disorders can be removed from the hypertrophied part; spasmodic vocal disorders, the feasibility of the arytenoid muscle toxin A (Botox) injections, mainly in the muscle end plate, blocking the release of acetylcholine, resulting in a neuromuscular blockade, reduce laryngeal muscle tone, but also feasible selective laryngeal recurrent neurectomy, and so on. 2, other: due to the disease caused by acid reflux can take antacid drugs (such as H2 receptor blockers, proton pump inhibitors, etc.). Prevention： 1. Enhancing physical fitness and preventing upper respiratory tract infections are essential to protect the voice. 2, long-term use of voice workers must know the correct method of vocalization, do not abuse the voice, with the voice to be appropriate; male puberty change voice, appropriate to reduce the time of voice practice. 3, female menstruation, the vocal cords can occur congestion, edema, should also pay attention to vocal rest. 4, avoid tobacco and alcohol, avoid spicy and other stimulating food, harmful gases and dust stimulation, in order to protect the vocal organs.