Children’s unclear speech is generally due to the living environment, dysarthria, delayed speech development, mental and psychological illnesses, etc. We need to identify the cause of the disease, and then give the corresponding treatment for the original disease, and then improve the symptoms through language training. 1. Practice pronunciation, by practicing some words or phrases with unclear pronunciation over and over again, in order to consolidate the pronunciation. 2. Exercise the organs of articulation, such as training the tongue, and letting the baby practice tongue extension, tongue rolling and tongue thrusting to exercise its flexibility, which will help the articulation of language. 3. Language training, you can let the child learn to sing, speech, tongue twisters and other ways to increase language exercise, and correct their pronunciation. 4. Language communication. When communicating with your child, parents should speak clearly and not too fast. 5. Surgical treatment, if the child’s tongue tie is too short caused by unclear pronunciation, it is recommended that the stomatology department for consultation, if necessary, can choose surgical treatment. When you find that your child is not speaking clearly, it is recommended that you seek medical attention to clarify the cause.